I have many things to speak and to judge concerning you. Hitherto, when the Lord uttered his great words of self-revelation, which always had an ethical end and were meant for the advantage of his hearers, they interrupted his speech and disputed his claims.
They refused these testimonies to himself which, if true, would necessitate their instantaneous submission. He seems to have gathered all his self-witness together in the word, "I am," verify altogether, absolutely, from the beginning onwards, just what my words convey; but I have much more to say concerning you, even if I should have nothing more to say concerning myself.
The testimonies and the judgments may be profoundly distasteful to you, but I dare not therefore withhold them. I am come to deliver them at any cost to myself or you. But he that sent me is true, whether you hear or forbear; and I am his Mouthpiece, so the truth has to be told.
The thought of God, if we can only approach it, is the absolute truth about every thing and about every man. Jesus is the Word of God incarnate, and the Utterer of irreversible judgment. The things which I heard from him, these speak I into the world.
εἰς τὸν κόσμον, is a remarkable expression. "Speak into, so that the words may reach as far as and spread through the world" (Westcott). The expression seems to have left him above or outside the world, so that he appears as "the Mediator between two worlds."