"Then I said, “Sir, how much longer?” He said to me, “Until the moment when the true human, within a modeled form, reveals the existence of the spirit of truth that the father has sent.
“Then he will teach them about everything. And he will anoint them with the unction of life eternal, given him from the generation without a king."
http://www.gnosis.org/naghamm/Hypostas-Barnstone.html
"13Howbeit 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."
https://biblehub.com/kjv/john/16.htm
"26But 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: 27And ye also shall bear witness, because ye have been with me from the beginning."
https://biblehub.com/kjv/john/15.htm