John 12:49

49.For I do not speak from myself. That the outward appearance of man may not lessen the majesty of God, Christ frequently sends us to the Father. This is the reason why he so often mentions the Father; and, indeed, since it would be unlawful to transfer to another a single spark of the Divine glory, the word, to which judgment is ascribed, must have proceeded from God. Now Christ here distinguishes himself from the Father, not simply as to his Divine Person, but rather as to his flesh; lest the doctrine should be judged after the manner of men, and, therefore, should have less weight. But if consciences were subject to the laws and doctrine of men, this argument of Christ would not apply, “My word (he says) will judge, because it has not proceeded from man;” according to that saying,

There is one lawgiver, who is able to save and to destroy,
(James 4:12.)

We may likewise infer from it, how monstrous, is the sacrilege of the Pope in daring to bind souls by his inventions; for in this way he claims more for himself than the Son of God does, who declares that he does not speak but by the commandment of his Father.