Trinity, Godhead, and Humanity: which are true?

from man who wants to screw with the bible. that is why I encourage all to read the word for themself and let God direct the teacher to them. Not to trust in everything people say. cause if the Father, the Son and the Holy Spirit was all three, then Jesus would have never said, I must leave in order for the helper (comforter) to come. and how is it that Jesus doesn't know when the final hour is?