The first-person plural in ἃ εἰργασάμεθα (“what we worked for”) most naturally refers to the author together with those engaged in the apostolic mission, rather than to the congregation as a whole. The verb εἰργασάμεθα (ergazomai), an aorist middle indicative, denotes labor already undertaken and brought to its intended stage. In the immediate setting, that labor is the establishment and preservation of the church in the truth concerning Jesus Christ, a truth now threatened by deceivers who deny his coming in the flesh (vv. 7, 9). The elder therefore regards the readers’ continued fidelity as the fruit toward which his own ministry and that of his fellow workers have been directed. The wording does not make the readers passive participants in the matter. The imperatives and subjunctives address them directly: they must watch themselves, lest they lose, and so that they may receive (ἀπολάβητε) a full reward. Yet their perseverance has consequences for the apostolic labor expended among them. If they receive the deceivers and abandon the abiding teaching of Christ, the work done for their spiritual good is frustrated in its intended outcome. The expression thus joins pastoral responsibility and congregational perseverance without confusing them: the missionaries have labored to bring the church to its promised end, while the readers themselves are exhorted to remain in the truth so as to receive the πλήρης μισθός, the full recompense belonging to those who endure in it.

The singular οὗτός (houtos, “this one”) does not identify a single, otherwise unnamed eschatological opponent distinct from the πολλοὶ πλάνοι (“many deceivers”). It functions distributively and characteristically: each person belonging to the class just described, namely those who do not confess Jesus Christ as coming in flesh, is thereby “the deceiver and the antichrist.” The singular permits John to state the decisive identity of such a teacher in an individualized form, while the preceding plural makes clear that the danger is already widespread. The participial phrase οἱ μὴ ὁμολογοῦντες (“those not confessing”) defines the deceivers by their continuing confession, or rather refusal of confession. John’s concern is not an isolated verbal irregularity but a doctrinal posture that rejects the apostolic confession of Jesus Christ. The articular predicates ὁ πλάνος and ὁ ἀντίχριστος (“the deceiver” and “the antichrist”) are therefore qualitative and classifying. They designate the spiritual character and allegiance manifested in this denial, rather than supplying the proper name of one final adversary. This usage accords with 1 John 2:18, where “many antichrists” demonstrate that the anticipated last-hour opposition is already active, and with 1 John 4:3, where false teaching concerning Jesus is associated with “the antichrist.” John does not deny a climactic eschatological opposition to Christ known elsewhere in Scripture, but 2 John 7 is directed against present human agents of that antichristian error. The singular formulation intensifies the verdict upon every teacher whose doctrine abandons the incarnate Christ.

John’s altered expression clarifies that communion with God is inseparable from confession of, and fellowship with, both the Father and the incarnate Son. “Does not have God” (theon ouk echei) states the negative judgment in its broadest form; the one departing from the apostolic Christological teaching has no saving possession of God. The corresponding positive statement then identifies the personal fullness of that communion: the one remaining in the teaching “has both the Father and the Son” (kai ton patera kai ton huion echei). The repeated present indicative echei ("has") denotes an existing relationship, not possession in an impersonal sense. The distinction between “God” and “the Father and the Son” does not divide the Godhead or imply that the Son is less than God. Rather, it reflects the Johannine conviction that God is known as Father through his Son, and that denial of the Son excludes one from the Father. The closely related formulation in 1 John 2:23 is especially decisive: whoever confesses the Son has the Father also. In the immediate setting, the deceivers’ error concerns Jesus Christ’s coming in the flesh (v. 7); consequently, a claim to know God while abandoning the apostolic confession of the Son is judged false. The coordinated objects, each marked by its own article, ton patera kai ton huion, preserve the distinction of the persons while affirming their inseparable fellowship in the believer’s knowledge of God.

The “commandment” is the Father-given norm by which genuine Christian life is measured, and in this immediate context it is specified as the command to love one another. The singular ἐντολήν (entolēn, accusative singular) is resumed and explained in vv. 5-6: the command held “from the beginning” is mutual love, while love itself consists in walking according to God’s commandments. Thus the elder’s joy concerns conduct that accords with the divine command, especially the concrete communal fidelity of brotherly love. Yet ἐν ἀληθείᾳ (en alētheia, “in truth”) cannot be reduced to ethical behavior detached from confession. In Johannine usage, “truth” is the revelation of God disclosed in the Son and preserved in the apostolic witness; it stands over against the deceivers who deny Jesus Christ’s coming in the flesh (v. 7). The present participle περιπατοῦντας (peripatountas) depicts an ongoing manner of life, and such walking includes persevering in the truth confessed as well as living consistently with it. The following warning against transgressing and failing to remain in the teaching of Christ (v. 9) confirms that faithful conduct and faithful doctrine are inseparable dimensions of this walk. The aorist ἐλάβομεν (elabomen, “we received”) presents the command as a received, rather than invented, norm. Its source is explicitly “the Father,” identifying Christian love and truth as responses to God’s authoritative revelation. The first-person plural naturally embraces the elder and the congregation as recipients of the tradition, while the letter’s apostolic character gives that received command binding doctrinal content. The verse therefore commends a life ordered by the Father’s revealed truth, expressed in continuing obedience to his command.

The singular “commandment” (hē entolē) in the second half of the verse refers particularly to the command of mutual love stated in v. 5, whereas the plural “commandments” (tas entolas) denotes the whole revealed will of God by which love is regulated and expressed. John therefore does not oppose love to obedience, nor does he reduce obedience to an undefined sentiment. Love is the command received “from the beginning,” and its authentic character is shown in a continuing walk patterned after all God’s commands. The immediate syntax supports this reading. The demonstrative feminine αὕτη (“this”) in “this is the commandment” most naturally resumes the exhortation of v. 5, “that we should love one another.” Likewise, the feminine pronoun αὐτῇ in “that you should walk in it” has ἐντολή as its grammatical antecedent. To walk “in” the commandment means to conduct one’s life within the sphere and direction of the command to love. The present subjunctive περιπατῆτε expresses the habitual, continuing character of such conduct. The alternation of singular and plural is characteristic of Johannine thought. The command to love sums up the ethical demand laid upon the community, yet it cannot be detached from the divine commandments that define covenant faithfulness. First John similarly calls love both an old commandment heard from the beginning and a command whose fulfillment is inseparable from walking in the light (1 John 2:7–11). In 1 John 3:23, the singular commandment includes faith in Christ and love for one another. Here the immediate emphasis falls on brotherly love, especially in a letter concerned with truth, fellowship, and the danger posed by deceivers; nevertheless, that love remains obedience to the God whose commandments establish its content.

“All those who have known the truth” denotes believers who share the apostolic truth and therefore recognize a real bond with the recipients; it should not be pressed as a claim that every Christian in the world had personal acquaintance with them. The adjective πάντες (pantes, “all”) is comprehensive within the implied community of those characterized by knowledge of the truth. John’s point is that his affection is neither private sentiment nor an isolated apostolic attachment. It is the common love generated among those united by the same saving and doctrinal reality. The perfect active participle ἐγνωκότες (egnōkotes, from ginōskō, “having come to know”) indicates knowledge acquired in the past with abiding significance. In the Johannine writings, “truth” (alētheia) is not bare intellectual accuracy or personal sincerity. It is the revealed message of God in Christ, received in faith and confessed faithfully. The following verse identifies this truth as abiding in believers and remaining with them, while vv. 7–9 show that it includes the decisive confession of Jesus Christ and adherence to his teaching. Thus those who “know the truth” are those established in the apostolic gospel, in contrast to deceivers who depart from it. The phrase also explains ἐν ἀληθείᾳ (en alētheia, “in truth”) in the preceding clause. John loves the addressees within the sphere and on the basis of the truth they mutually confess. Christian love in this salutation is consequently doctrinally defined: shared allegiance to the truth of Christ creates and authenticates fellowship. This opening prepares for the letter’s concern that love, truth, hospitality, and doctrinal vigilance must remain joined rather than separated.

The expression λέγειν χαίρειν (legein chairein), “to say greetings,” denotes more than the utterance of a bare word of civility in this context. Χαίρειν is the present active infinitive of χαίρω (chairō, “rejoice”), commonly used as a conventional salutation in Greek letters and personal encounters. Yet its force here is determined by verse 10: the person in view is one who comes as a teacher while refusing to remain in the apostolic doctrine concerning Christ, and the prohibited conduct is receiving such a person “into the house” together with extending χαίρειν. The greeting signifies a welcome that recognizes the visitor as a brother or legitimate Christian teacher. Verse 11 supplies the reason for that prohibition. The articular participle ὁ λέγων (“the one saying”) identifies the person who extends this greeting, while κοινωνεῖ (koinōnei, present active indicative of κοινωνέω, “share, participate”) states that such recognition makes him a participant in the deceiver’s evil works. The dative τοῖς ἔργοις ... τοῖς πονηροῖς (“in his evil works”) indicates participation with or complicity in those works, especially the active dissemination of teaching that denies the incarnate coming of Jesus Christ (vv. 7, 9). The concern is therefore not that ordinary contact or necessary speech would morally contaminate a believer, but that public hospitality and fraternal salutation would furnish endorsement, social legitimacy, and practical aid to a teacher whose message is destructive. The verse consequently cannot be treated as a universal ban on all courteous acknowledgment of every person holding theological error. John addresses itinerant deceivers who seek access to Christian households and congregational networks as teachers. Within that setting, saying χαίρειν functions as an act of ecclesial fellowship. Since fellowship with those who depart from Christ’s doctrine entails partnership in their work, John requires that the church’s recognition and support remain joined to the truth confessed in the apostolic gospel.

The prepositional phrase διὰ τὴν ἀλήθειαν (“because of the truth”) supplies the ground for the love expressed in v. 1. The elder loves the addressees “in truth,” and this love is shared by “all who have known the truth,” because the same truth abides among them. The accusative after διά normally has causal force here: their mutual love arises from their common possession of the apostolic truth, rather than from personal affinity, social obligation, or a generalized religious sentiment. The construction is reinforced by the repeated article: τὴν ἀλήθειαν τὴν μένουσαν, “the truth, the [truth] abiding.” The present active participle μένουσαν (from menō) agrees with ἀλήθειαν and characterizes truth as continuing in the Christian community. Thus v. 2 is not a detached doctrinal affirmation appended to the greeting; it explains why the elder’s love and the love of all true believers can extend to this particular congregation. In the letter’s setting, where deceivers threaten to deny the incarnate Christ (vv. 7–11), such love is inseparable from fidelity to the truth received from the beginning. The future clause, “and it will be with us forever,” confirms that this shared truth is no temporary bond but the enduring reality that establishes authentic Christian fellowship.

The prohibition concerns the ecclesial and missionary reception of a teacher who arrives without “this teaching,” not the abandonment of every ordinary social courtesy toward an unbeliever. The present condition, “if anyone comes” (εἴ τις ἔρχεται), depicts an arriving claimant to Christian fellowship and presumably to teaching ministry. Such traveling teachers depended upon households for lodging, material provision, introductions, and access to gathered congregations. To “take” him into a house (λαμβάνετε αὐτὸν εἰς οἰκίαν) therefore means to receive him as a recognized Christian worker, a reception that could include the use of the house as a base for instruction or as the meeting place of a house church. Likewise, χαίρειν λέγειν, literally “to say rejoice” or “greetings,” is more than a bare incidental salutation in this setting. The infinitive χαίρειν functions as the conventional formula of greeting, but its force is determined by the coordinated command against receiving the visitor. John forbids a greeting that conveys welcome, blessing, and fellowship to one presenting himself as a Christian teacher while refusing the apostolic confession of Jesus Christ. Verse 11 makes the rationale explicit: the person who gives such a welcome becomes a participant (κοινωνεῖ) in the teacher’s evil works. The concern is not contamination by casual contact, but active endorsement and assistance in the dissemination of destructive doctrine. The demonstrative phrase “this teaching” (ταύτην τὴν διδαχήν) points back to the confession set out in vv. 7–9: Jesus Christ has come in the flesh, and believers must abide in the teaching of Christ. John thus distinguishes Christian love from institutional or ministerial fellowship with those who deny the incarnate Son. The imperative forms, μὴ λαμβάνετε and μὴ λέγετε, forbid the continuing practice of granting such recognition. The text does not authorize personal hostility; it excludes the forms of hospitality and greeting by which a church or household would publicly validate and materially advance a deceiver’s ministry.

The singular vocative κυρία (kyria, “lady” or “mistress”) is best understood as a personification of the local congregation to which the letter is sent, rather than as the personal name or title of an individual woman. The author can therefore write ἐρωτῶ σε (“I ask you,” singular) while immediately expressing the command in the first-person plural: ἣν εἴχομεν ἀπ᾽ ἀρχῆς, ἵνα ἀγαπῶμεν ἀλλήλους (“which we have had from the beginning, that we should love one another”). The imperfect εἴχομεν (“we had”) and present subjunctive ἀγαπῶμεν (“we should love”) locate both writer and recipients within the shared Christian community governed by the apostolic command of mutual love. This corporate reading coheres with the letter’s framing. The addressees are “the elect lady and her children” (v. 1), and the closing greeting comes from “the children of your elect sister” (v. 13). Such familial language readily depicts one congregation and its members, with another congregation sending greetings. It also accords with the letter’s concern for receiving or refusing traveling teachers (vv. 10–11), a matter ordinarily bearing upon a gathered church and its household of faith. The singular address is thus not merely ornamental: it portrays the congregation as a single covenantal body, while the plural language identifies its members as mutually obligated by the command they received from the beginning of their Christian confession. An individual woman and her children cannot be excluded on grammatical grounds alone, since κυρία may be used respectfully of a woman and the singular pronouns are real singulars. Yet the sustained metaphor of lady, children, and sister, together with the corporate concerns of the epistle, makes the ecclesial interpretation more probable. The command to love is consequently addressed to the church as a body, not merely to a private household, though it necessarily encompasses the personal relations of those within that body.

The future indicative ἔσται (from εἰμί, “to be”) gives the greeting the character of confident assurance rather than a mere pious wish. John does not simply invoke grace, mercy, and peace upon his readers; he declares that these gifts “will be with us.” The form is formally indicative, though it functions in the conventional setting of an epistolary benediction. Its assurance rests not in the goodwill of the writer but in the stated source of the blessing: God the Father and Jesus Christ, the Son of the Father. The singular verb ἔσται precedes the three nominatives, χάρις, ἔλεος, and εἰρήνη, treating the threefold gift as a unified divine provision. Grace denotes God’s undeserved favor, mercy his compassionate aid toward need and misery, and peace the well-being and reconciliation flowing from his saving work. The phrase μεθ᾽ ἡμῶν, “with us,” includes the elder with the addressed church; it is not an assertion of apostolic privilege detached from the congregation. In the immediate context, this shared blessing belongs to those bound together by “the truth” (vv. 1–2), rather than to those who abandon the apostolic confession of Christ (vv. 7–9). The concluding ἐν ἀληθείᾳ καὶ ἀγάπῃ, “in truth and love,” identifies the sphere in which this divine blessing abides and is known. Truth and love are not alternative religious virtues: truth is the revealed confession centered on Jesus Christ, and love is the faithful communal life that accords with that confession. Thus the future is not an abstract prediction of prosperity. It is a settled declaration that the Father’s and the Son’s grace, mercy, and peace accompany the believing community as it remains in the truth and love defined by the apostolic gospel.

The “children” are most probably the members of a sister congregation, who send greetings to the congregation addressed as the “elect lady” in v. 1. The closing greeting deliberately resumes the family imagery with which the letter began: the addressee has “children” (v. 1), and her “sister” likewise has “children.” The parallelism is most naturally ecclesial. Just as the author can speak of finding some of the addressee’s children walking in truth (v. 4), so the children of the sister church greet the whole community through its representative address. Greek grammar supports this reading without making it mechanically necessary. Τὰ τέκνα (ta tekna, “the children”) is nominative neuter plural and serves as the subject of the singular present middle indicative ἀσπάζεται (aspazetai, “greets”); a neuter plural subject commonly takes a singular verb. The genitive phrase τῆς ἀδελφῆς σου τῆς ἐκλεκτῆς (“of your elect sister”) identifies the children as belonging to the recipient’s sister. Ἐκλεκτῆς (eklektēs), genitive singular feminine of ἐκλεκτός, characterizes the sister as chosen by God, corresponding to the “elect lady” of v. 1. It is unlikely to be a personal name, “Electa,” since the same adjective functions theologically in the opening and belongs naturally to the letter’s corporate imagery. A literal household interpretation has been proposed, especially if the “lady” is taken as an individual Christian matron. Yet the letter’s concern for those who “go out into the world” as deceivers (v. 7), its instructions concerning reception into “the house” (vv. 10–11), and its closing reference to a sister and her children are better explained as church correspondence. The author writes from one Christian assembly, probably one known to him intimately, to another related assembly, and conveys the greeting of the former’s members. The familial language expresses the churches’ shared identity as communities called by the electing grace of God.

The clause denotes the bringing of an already possessed joy to its intended fullness, not the initial production of joy. The construction ἵνα ἡ χαρὰ ὑμῶν πεπληρωμένη ᾖ combines the purpose conjunction ἵνα with a periphrastic perfect passive: the perfect passive participle πεπληρωμένη (from πληρόω, "fill, bring to completion") stands with the present subjunctive ᾖ. It portrays joy as entering and remaining in the state of fullness. Thus “that your joy may be fulfilled” is defensible, though “that your joy may be complete” more directly conveys the completed-state force of the Greek. This fullness is tied immediately to the author’s hoped-for presence and personal speech, στόμα πρὸς στόμα (“mouth to mouth,” idiomatically, face to face). The letter has addressed the grave danger of deceivers who deny the incarnate coming of Jesus Christ and has required discernment concerning hospitality toward them (vv. 7–11). Written instruction is therefore necessary, but it is not the whole of apostolic pastoral fellowship. The author expects that embodied conversation will complete the congregation’s joy by confirming communion in the truth and resolving matters that he does not wish to handle merely “through paper and ink.” The passive form need not specify God explicitly as the agent, yet the Johannine understanding of joy is not merely social satisfaction; it is joy brought to its proper fullness through persevering fellowship in the truth of the Father and the Son.

The πιθανή loss in v. 8 is not most naturally construed as the revocation of justification, but as the ruin of the pastoral and missionary fruit that the Elder and his fellow workers have labored to produce among the readers. The relative pronoun ἅ (“what”) is neuter plural and has no explicit noun antecedent; it comprehensively denotes the result of the apostolic work (εἰργασάμεθα, *ergazomai*, aorist middle indicative, “we worked/labored”). In the immediate context, that work is endangered by deceivers who deny the incarnate coming of Jesus Christ (v. 7) and who do not remain in Christ’s teaching (v. 9). To receive such persons or to be carried away by their doctrine would undo the congregation’s perseverance in the truth and thus frustrate the fruit of the Elder’s ministry among them. The contrast is between losing that fruit and receiving “a full reward” (μισθὸν πλήρη). μισθός can denote wages or recompense, but in this setting it signifies eschatological recompense granted by God, not salvation earned by human labor. The aorist subjunctives ἀπολέσητε (“that [they] might lose”) and ἀπολάβητε (“that [they] might receive”) stand under ἵνα and express the purpose of the imperative βλέπετε ἑαυτούς: vigilant self-watchfulness is the means by which the church is preserved from the deceivers’ destructive influence. The warning is therefore real, not hypothetical rhetoric; apostasy from the apostolic Christ would expose a person as having departed from the truth. Yet John’s language here concentrates on the loss of the church’s completed course and reward, rather than teaching that those whom God has effectually saved may finally fall from grace. The “full” reward belongs to those who continue in the teaching of Christ, in continuity with the Johannine insistence that genuine communion with God is manifested in abiding in the truth.

The phrase "Jesus Christ coming in flesh" refers principally to the incarnation, not to Christ's future advent. The participle ἐρχόμενον (erchomenon, present middle participle, accusative masculine singular) modifies Ἰησοῦν Χριστόν and identifies the Jesus Christ whom the deceivers refuse to confess: he is the one whose coming was truly ἐν σαρκί, "in flesh." In this setting, "flesh" (sarx) denotes genuine human embodied existence, and the denial in view is therefore a Christological repudiation of the reality or significance of the incarnate Son's humanity. The present participle does not require a future reference. Greek present participles may portray an action as characteristic, vivid, or continuing in its consequences rather than locating it strictly in present time. John can describe the same confession in 1 John 4:2 with ἐληλυθότα (elēlythota, perfect active participle), "having come in flesh," which expressly stresses the completed historical advent. The variation in 2 John 7 should not be made to create a different object of confession. Rather, the present form presents the incarnate coming as inseparable from the abiding identity of Jesus Christ: the one confessed as Christ is not a merely apparent or temporarily embodied heavenly figure. A reference to the second coming has occasionally been proposed because ἔρχομαι (erchomai) can denote Christ's return. Yet the expression "in flesh" is ill suited to make the manner of the parousia the central issue, whereas it directly addresses teachings that dissolved the unity of the eternal Son and the historical Jesus. The plural deceivers are consequently gathered under the singular characterization, "this is the deceiver and the antichrist": the demonstrative οὗτός functions generically for anyone defined by this refusal, not as an identification of one solitary end-time individual.

The phrase “the teaching of Christ” (τῇ διδαχῇ τοῦ Χριστοῦ) denotes primarily the apostolic teaching concerning Christ—above all the confession of the incarnate Son—rather than a bare collection of ethical instructions delivered by Jesus. The genitive τοῦ Χριστοῦ can formally be read as subjective (“teaching given by Christ”) or objective (“teaching about Christ”). Yet the immediate context favors the latter emphasis: the deceivers of v. 7 are identified by their refusal to confess Jesus Christ as coming in the flesh, and v. 10 speaks of one who does not bring “this teaching.” The issue is therefore not advancement beyond a moral tradition but departure from the church’s received Christological confession. This need not sever the doctrine about Christ from the teaching that comes from Christ. The apostolic witness bears Christ’s own authoritative revelation, and the Johannine writings regularly join abiding in the Son with abiding in the word heard “from the beginning” (cf. 1 John 2:24). Nevertheless, in this setting the expression marks the fixed and normative message that identifies the true Christ. Those who claim spiritual or intellectual progress while abandoning that message “do not have God”; their alleged knowledge of God is exposed as false because the Father is known only in and through the true Son. The second clause makes the positive counterpart explicit. The present participle μένων (menōn, “the one abiding”) describes continuing attachment to this teaching, not merely a past acknowledgment of it. Such abiding entails possession of “both the Father and the Son,” a deliberately paired confession that excludes any appeal to fellowship with God apart from fidelity to the incarnate Christ proclaimed by the apostolic gospel.

The clause ἐκ τῶν τέκνων σου is best taken as partitive: not all, but some of the addressee’s children have been observed walking ἐν ἀληθείᾳ. The limitation is not necessarily an implied rebuke of the rest, though the broader letter makes plain that truth and obedience are matters of urgent concern. The affectionate familial language is characteristic of 2 John, where “children” may denote the literal offspring of the elect lady or, more probably in the letter’s ecclesial setting, members of her household or congregation. In either case, the phrase underscores that the writer’s joy is rooted in the concrete evidence of covenant fidelity among those under her care. The perfect εὕρηκα carries more weight than a simple past “I found.” It signals a past discovery with continuing present relevance: the writer has come to know, and remains aware, that some of these children are walking in the sphere of truth. The aorist Ἐχάρην expresses the immediate response of rejoicing, while the perfect describes the settled basis for that joy. The sequence thus reads naturally: on hearing or observing this abiding fact, he rejoiced greatly. The aspectual contrast contributes to the letter’s pastoral tone, grounding emotion not in a fleeting report but in an enduring reality. Walking “in truth” (περιπατοῦντας ἐν ἀληθείᾳ) is Johannine shorthand for a life governed by the revelation of God in Christ, not mere sincerity or abstract correctness. The participle περιπατοῦντας is present, indicating an ongoing manner of life. The closing καθὼς ἐντολὴν ἐλάβομεν παρὰ τοῦ πατρός links this conduct directly to divine command, probably the command to believe in and love the Son and one another, as the wider Johannine corpus repeatedly states. Thus the verse joins observable obedience, apostolic witness, and the Father’s own authority: truth is not merely affirmed but embodied in a patterned walk that corresponds to the received commandment.

John gives a concise definition of Christian love: it is not an inward sentiment detached from revelation, but obedience shaped by God’s commands. The phrase ἵνα περιπατῶμεν (“that we should walk,” present active subjunctive) expresses either purpose or result, but in Johannine style the distinction is often slight; the point is that love issues in a manner of life governed by what God has commanded. The preposition κατὰ with the accusative (“according to”) stresses norm or standard, so love is measured by conformity to divine instruction rather than by self-generated sincerity. The second half of the verse clarifies and reinforces the first: αὕτη ἡ ἐντολή (“this is the commandment”) refers not to a different command but to the same reality viewed from another angle. The singular ἐντολή, after the plural ἐντολάς, is best taken collectively: the many commandments of God cohere as one moral claim, namely, that believers walk in them. The repetition of αὕτη and the echo of περιπατεῖτε make the statement emphatic and proverbial. The closing clause, καθὼς ἠκούσατε ἀπ’ ἀρχῆς (“just as you heard from the beginning”), anchors this ethical definition in the original apostolic message. Ἀπ’ ἀρχῆς in 2 John most naturally refers to the beginning of the Christian proclamation received by the readers, not to a timeless philosophical principle. Love, then, is not being freshly redefined against an older Christian consensus; rather, John is insisting that the church’s earliest instruction already bound love and obedience together. The verse therefore stands in continuity with the Fourth Gospel and 1 John, where love for God is inseparable from keeping his commandments.

The designation ἐκλεκτῇ κυρίᾳ (eklektē kyriā) is the chief interpretive crux of the salutation. Grammatically, the dative singular feminine readily suits an individual woman, and αὐτῆς (“her”) with τέκνοις (“children”) naturally reads as a household reference. The plain sense of the opening, therefore, is not forced if the author is writing to a Christian woman of some prominence, perhaps with a domestic sphere that figures in the letter’s concern. The ensuing references to “some of your children” and “the children of your elect sister” in the closing verse also fit such a reading with notable ease. At the same time, a corporate or figurative reading has long commended itself to many interpreters because the language may function as discreet ecclesial address. The noun κυρία can denote a lady, but in a Christian letter it may also serve as a respectful personification of a congregation, while “children” would then be its members. Such an interpretation gains some plausibility from the epistolary and pastoral setting, in which John warns against false teachers and stresses communal fidelity to the truth. Yet the text does not require an allegorical decoding, and the personal tone of the salutation, together with the references to hospitality and walking in truth in the body of the letter, may reflect a real woman and her Christian family or household. Whichever identification is adopted, the theological emphasis remains the same: the addressees are marked out by divine election, and the sender’s love for them is qualified by ἐν ἀληθείᾳ (“in truth”). That phrase is not mere politeness but signals the sphere and standard of Christian love, grounded in the revealed truth of the gospel and shared by “all who know the truth.” The perfect participle ἐγνωκότες (“those who have known”) indicates settled possession of that truth, so the salutation binds love to doctrinal fidelity from the outset. The verse thus introduces the letter’s characteristic union of affection, election, and truth, whether the recipient is an individual matron or the church addressed under a discreet personal name.

The present participle ὁ λέγων (“the one who says”) is generic and characterizing rather than strictly momentary: it denotes any person whose speech is marked by the formula χαιρειν (“greetings,” lit. “to rejoice”). The issue is not merely the utterance of a polite salutation in isolation, but the act of extending conventional fellowship to the false teacher who stands under the condemnation of the preceding verse. In the compact syntax of the line, the participle functions substantivally, identifying the person by this behavior; the following finite verb κοινωνεῖ (“shares,” “participates”) then states the consequence. The present tense of κοινωνεῖ likewise presents this as the settled effect of such conduct, not as a one-off inadvertent association. The noun κοινωνεῖν conveys participation or partnership, and here the dative τοῖς ἔργοις αὐτοῦ τοῖς πονηροῖς makes the sphere of complicity explicit: the one who greets the deceiver becomes a participant in his evil deeds. The double article with ἔργοις and πονηροῖς is adjectival and definite, identifying not deeds in general but the false teacher’s specific wicked works, namely the propagating and underwriting of his doctrinal rebellion against Christ. The verse therefore treats greeting not as a trivial social courtesy but as an act that can signify endorsement and communion. In its immediate context, the warning presupposes that recognition and hospitality convey moral and ecclesial alignment; to offer them to the deceiver is to join oneself to his enterprise. The statement is severe, but it is not merely a prohibition of all contact with outsiders. The letter has in view the reception of a man who does not abide in the teaching of Christ (vv. 7–10), and the “greeting” corresponds to an acceptance that would legitimize his ministry. The force of the present participle and the participle-led construction makes the warning general and principial: anyone who gives such acknowledgment to that kind of teacher shares in his evil works. The focus is thus on solidarity with false teaching, not on ordinary civility toward unbelievers or even brief interaction in the course of public life.