KJV - 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:
ASV - 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 bear witness of me:
BBE - When the Helper comes, whom I will send to you from the Father even the Spirit of true knowledge who comes from the Father--he will give witness about me;
WEB - "When the Counselor{Greek Parakletos: Counselor, Helper, Advocate, Intercessor, and Comfortor.} has come, whom I will send to you from the Father, the Spirit of truth, who proceeds from the Father, he will testify about me.
YLT - `And when the Comforter may come, whom I will send to you from the Father -- the Spirit of truth, who from the Father doth come forth, he will testify of me;