Genesis 32:27

“And he said unto him, what [is] thy name? etc.] 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.”

“- Jacob Wrestles in Prayer 3. מחנים machănāyı̂m, Machanaim, “two camps.” 22. יבק yaboq, Jabboq; related: בקק bāqaq “gush or gurgle out” or אבק 'ābaq in niphal, “wrestle.” Now Wady Zurka. 29. ישׂראל yı̂śrā'ēl, Jisrael, “prince of God.” 31. פניאל penı̂y'ēl = פנוּאל penû'ēl, Peniel, Penuel, “face of God.” After twenty years spent in Aram, Jacob now returns to Kenann. As his departure was marked by a great moment in his spiritual life, so he is now approaching to a crisis in his life of no less significance Genesis 32:1-3 Jacob has a vision of the heavenly host. This passage, recording Laban’s farewell and departure, closes the connection of Jacob with Haran and all its toils of…”

“32:27 What is your name? The Lord’s question was really about Jacob’s character, not his identity (cp. 3:9; 4:9). By giving his name, Jacob confessed his nature, his way of doing things as “Heel-grabber, Deceiver, Usurper.” Before God would bless him, he had to acknowledge who he was, and then God would change his identity.”