NET

13 But when he, the Spirit of truth, comes, he will guide you into all truth. For he will not speak on his own authority, but will speak whatever he hears, and will tell you what is to come.

Darby

13 But when *he* is come, the Spirit of truth, he shall guide you into all the truth: for he shall not speak from himself; but whatsoever he shall hear he shall speak; and he will announce to you what is coming.

KJV

13 “Howbeit when he, the Spirit of truth, is come, he will guide you into all truth: for he shall not speak of himself; but whatsoever he shall hear,” [that] “shall he speak: and he will shew you things to come.”