Parallel
John 19:35
Patriarchal Greek New Testament (1904) · Berean Standard Bible
καὶ ὁ ἑωρακὼς μεμαρτύρηκε, καὶ ἀληθινὴ αὐτοῦ ἐστιν ἡ μαρτυρία, κἀκεῖνος οἶδεν ὅτι ἀληθῆ λέγει, ἵνα [καὶ] ὑμεῖς πιστεύσητε.
The one who saw it has testified to this, and his testimony is true. He knows that he is telling the truth, so that you also may believe.