Genesis 32:27

And he said unto him, what [is] thy name?.... Which question is put, not as being ignorant of it, but in order to take occasion from it, and the change of it, to show that he had granted his request, and had blessed him, and would yet more and more:

and he said, Jacob; the name given him at his birth, and by which he had always been called, and therefore tells it him at once, not staying to ask the reason of the question.