Parallel
John 15:27
Robinson-Pierpont Byzantine Textform · 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.