There Jacob wrestled with a man with until the breaking of the day.
The Bible calls this person a man, but reveals that he is God in verse 31.
When the man saw that he did not prevailed against Jacob, he touched the hollow of Jacob’s thigh; and the hollow of Jacob’s thigh was out of joint, as he wrestled with the man.
The man: Let me go, for the day breaks.
Jacob: I will not let you go, unless you bless me.
The man: What is your name?
The man: Your name shall no more be called Jacob, but Israel, for as a prince you have power with God and with men, and have prevailed.
Jacob: Tell me, I pray, your name.
The man: Why is it that you ask after my name?
And he blessed Jacob there.
Jacob called the name of the place Peniel.
Jacob: For I have seen God face to face, and my life is preserved.
As Jacob passed over Penuel, the sun rose and he limped on his injured thigh.
To this day, the children of Israel do not eat of the sinew on the hollow of the thigh, because God touched the hollow of Jacob’s thigh in the sinew that shrank.