1 John 2:23 New English Translation

²³Everyone who denies the Son does not have the Father either. The person who confesses the Son has the Father also.^[a]

1 John 2:23 tc The Byzantine text, with a handful of other mss (81 642 1175 2492 M), lacks the last eight words of this verse, “The person who confesses the Son has the Father also” (ὁ ὁμολογῶν τὸν υἱὸν καὶ τὸν πατέρα ἔχει, ho homologōn ton huion kai ton patera echei). Although shorter readings are often preferred (since scribes would tend to add material rather than delete it), if an unintentional error is likely, shorter readings are generally considered secondary. This is a classic example of such an unintentional omission: The τὸν πατέρα ἔχει of the preceding clause occasioned the haplography, with the scribe’s eye skipping from one τὸν πατέρα ἔχει to the other.

New English Translation (NET)