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