"When the Spirit of truth comes, he will guide you into all the truth, for he will not speak on his own authority, but whatever he hears he will speak, and he will declare to you the things that are to come."
When He comes, He will guide you into all the full and complete truth. For He will not speak on His own initiative, but He will speak whatever He hears from the Father—the message regarding the Son. He will disclose to you what is to come in the future. He will take you by the hand and guide you into all the truth there is.
The Spirit shows what is true and will come and guide you into the full truth. The Spirit doesn’t speak on his own. He will tell you only what he has heard from me, and he will let you know what is going to happen. He won’t draw attention to himself, but will make sense out of what is about to happen.