John 1:18, the only Son, or the only God?
John 1:18 is transmitted as μονογενὴς θεὸς, the only-begotten God, and ὁ μονογενὴς υἱός, the only-begotten Son. The earliest manuscripts and the Byzantine majority preserve different nouns at the prologue’s close.
The APB text at this verse
The manuscripts, editions, and versions
The committee record at this verse
The APB's translation committee works blind: it is never told it is translating the Bible, never given a book name or a verse number, and it never sees the witnesses above. Since revision 3.5, the places where the manuscripts disagree are decided before translation by three readers, Grok 4.3, GPT-6 Astra, and Claude Fable 5.1, who see the readings and the witnesses by age and class but never a reference or a manuscript name. Whatever was done at this verse was done on the language and the evidence alone, and the record is public.
“The base text reads μονογενὴς θεὸς. The copies also carry ὁ μονογενὴς [greek majuscule; early greek manuscript tradition; later majority tradition]; the committee kept the base text. Default wording chosen because the external evidence favors μονογενὴς θεὸς and the internal evidence supports it as the source of ὁ μονογενὴς.”
“The base text reads μονογενὴς θεὸς. The copies also carry ὁ μονογενὴς υἱός [greek majuscule; later majority tradition]; the committee kept the base text. Default wording μονογενὴς θεὸς is preferred because the external evidence favors its early and independent attestation and the internal evidence shows it best explains the rise of ὁ μονογενὴς υἱός.”
The APB 3.5 decision kept μονογενὴς θεὸς as its base text. Its note says, “The base text reads μονογενὴς θεὸς.” It further states that the committee kept that text because external evidence favored it and internal evidence was judged to explain the rise of ὁ μονογενὴς υἱός. The three readers worked blind, seeing readings and witnesses only by class and date, without a reference, book name, or manuscript name. The pericope audit verdict is clean.
The argument for each reading
If “only-begotten God”
The case for reading A begins with Papyri 66 & 75, dated c. A.D. 200. Their row identifies them as the two earliest witnesses to John’s prologue, and both read μονογενὴς θεὸς. NA28 also prints this wording. The apparatus line places WH, Treg, and NA28 with μονογενὴς θεὸς.
The physical form of the variation gives this reading a particular textual question: the nouns were written as sacred-name abbreviations, ΘΣ and ΥΣ, separated by one stroke. The APB 3.5 decision also cites external evidence favoring μονογενὴς θεὸς and says internal evidence supports it as the source of ὁ μονογενὴς υἱός. Reading A therefore presents the prologue’s final designation as the unique or only-begotten God, as reflected in the APB printed text.
If “only-begotten Son”
The case for reading B rests on its broad Byzantine support. RP prints ὁ μονογενὴς υἱός, and its witness row states that the Byzantine text and the vast majority of manuscripts read Son. The apparatus line likewise sets RP with ὁ μονογενὴς υἱός.
This reading gives the clause the fuller expression ὁ μονογενὴς υἱός, the only-begotten Son. In a place where ΘΣ and ΥΣ could differ by one stroke in abbreviated sacred names, the manuscript form itself makes the competing nouns unusually close on the page. The APB 3.5 record lists this wording among the copies, including the later majority tradition. Reading B therefore has substantial numerical and Byzantine-text support, even though the packet identifies different support for reading A.
The uncertainty concerns the noun in the designation: θεὸς or υἱός. The packet supplies early support for the former and majority Byzantine support for the latter, while the abbreviated forms ΘΣ and ΥΣ are one stroke apart. No verse is deleted in the committee’s procedure. The variant changes the wording at John 1:18; broader doctrinal questions are considered across many passages and do not rest on this unit alone.
Common questions
Does John 1:18 say only-begotten God or only-begotten Son?
The packet records both: μονογενὴς θεὸς is supported by Papyri 66 & 75 and NA28, while ὁ μονογενὴς υἱός is printed by RP and associated with the Byzantine majority.
Why are the readings so close in the manuscripts?
The nouns were written as abbreviated sacred names: ΘΣ and ΥΣ. The packet says they are one stroke apart.
What does the APB printed text use at John 1:18?
The APB prints: No one has ever seen God; the unique God, who is at the Father's side, has made him known.
Related entries
Witness readings for critical editions are quoted from the SBLGNT apparatus (CC BY 4.0); Hebrew text from the Westminster Leningrad Codex (Open Scriptures Hebrew Bible). Readings of ancient manuscripts and versions are cited as published scholarly fact with their sources linked above. The page does not declare which reading is original.
The registry gives no verdict
The registry does not say which reading is original. Each page lists the witnesses, shows what the committee did with the same text, and leaves the judgment to the reader.