John 8:14, 28-29, 38

Jesus answered and said to them, “Even if I testify about Myself, My testimony is true, for I know where I came from and where I am going; but you do not know where I come from or where I am going.

So Jesus said, “When you lift up the Son of Man, then you will know that I am He, and I do nothing on My own initiative, but I speak these things as the Father taught Me. And He who sent Me is with Me; He has not left Me alone, for I always do the things that are pleasing to Him.”

I speak the things which I have seen with My Father; therefore you also do the things which you heard from your father.”