Parallel
John 21:24
Patriarchal Greek New Testament (1904) · Berean Standard Bible
Οὗτός ἐστιν ὁ μαθητὴς ὁ μαρτυρῶν περὶ τούτων καὶ γράψας ταῦτα, καὶ οἴδαμεν ὅτι ἀληθής ἐστιν ἡ μαρτυρία αὐτοῦ.
This is the disciple who testifies to these things and who has written them down. And we know that his testimony is true.