Genesis 32:24-30
24: And Jacob was left alone; and a man wrestled with him until the breaking of the day.
25: When the man saw that he did not prevail against Jacob, he touched the hollow of his thigh; and Jacob's thigh was put out of joint as he wrestled with him.
26: Then he said, "Let me go, for the day is breaking." But Jacob said, "I will not let you go, unless you bless me."
27: And he said to him, "What is your name?" And he said, "Jacob."
28: Then he said, "Your name shall no more be called Jacob, but Israel, for you have striven with God and with men, and have prevailed."
29: Then Jacob asked him, "Tell me, I pray, your name." But he said, "Why is it that you ask my name?" And there he blessed him.
30: So Jacob called the name of the place Peni'el, saying, "For I have seen God face to face, and yet my life is preserved."