Parallel
John 15:27
Nestle 1904 Greek New Testament · Berean Standard Bible
καὶ ὑμεῖς δὲ μαρτυρεῖτε ὅτι ἀπ’ ἀρχῆς μετ’ ἐμοῦ ἐστε
And you also must testify, because you have been with Me from the beginning.