John 8:13-17

So the Pharisees said to Him, “You are testifying about Yourself; Your testimony is not true.”

Jesus answered and said to them, “Even if I am testifying about Myself, My testimony is true, because 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.

You judge according to the flesh; I am not judging anyone.

But even if I do judge, My judgment is true; for I am not alone in it, but I and the Father who sent Me.

Even in your Law it has been written that the testimony of two people is true.