The phrase τὴν παραθήκην μου is most naturally taken as a deposit entrusted to God rather than a treasure deposited by God into Paul. The noun παραθήκη (parathēkē) denotes something placed in another’s keeping, and the clause that follows—“to guard” (φυλάξαι, aorist active infinitive) “until that day”—fits the image of divine custody of what Paul has committed to him. The possessive μου is best understood objectively, not as the deposit originating with Paul in a proprietary sense, but as the matter placed in God’s safekeeping: Paul’s life, ministry, and all that he has entrusted to the Lord amid suffering and death. The immediate context, in which Paul confesses shame is absent because he knows whom he has believed, strongly supports this reading of personal entrustment in the face of imprisonment and possible martyrdom. A minority interpretation, ancient and modern, has understood the “deposit” as the apostolic gospel or even the salvation entrusted to Paul by God. That reading is not impossible in light of the surrounding emphasis on guarding the pattern of sound words and the good deposit in the Pastoral Epistles. Yet in this verse the direction of the action is decisive: Paul says that Christ is δυνατός, “able,” to guard the deposit, and the future-oriented phrase εἰς ἐκείνην τὴν ἡμέραν points to final vindication at the Lord’s return. The wording thus evokes a legal-commercial image common in Greek usage, but it is transposed into a covenantal idiom: the apostle has committed all to the Lord, confident that the Lord will preserve it intact until the last day. The expression “that day” is consistently eschatological in Paul and here gathers up both vindication and reward in the presence of the Judge and Savior. Thus the verse is not merely a statement of subjective piety but a confession of providence and perseverance: the One trusted is not only willing but δυνατός, fully able, to keep secure what has been committed to him. In the larger argument of 2 Timothy, this confidence undergirds Paul’s lack of shame in suffering and anticipates the steadfastness urged throughout the letter.