John 12:48-50

48The one who rejects me and does not accept my words has a judge; the word I have spoken will judge him at the last day.

49For I have not spoken from my own authority, but the Father himself who sent me has commanded me what I should say and what I should speak.

50And I know that his commandment is eternal life. Thus the things I say, I say just as the Father has told me.”