NET
26 When the Advocate comes, whom I will send you from the Father—the Spirit of truth who goes out from the Father—he will testify about me,
Darby
26 But when the Comforter is come, whom I will send to you from the Father, the Spirit of truth who goes forth from with the Father, *he* shall bear witness concerning me;
KJV
26 “But when the Comforter is come, whom I will send unto you from the Father,” [even] “the Spirit of truth, which proceedeth from the Father, he shall testify of me:”