Genesis 32:29

26 And he said to him, Let me go now, for the dawn is near. But Jacob said, I will not let you go till you have given me your blessing.

27 Then he said, What is your name? And he said, Jacob.

28 And he said, Your name will no longer be Jacob, but Israel: for in your fight with God and with men you have overcome.

29 Then Jacob said, What is your name? And he said, What is my name to you? Then he gave him a blessing.

30 And Jacob gave that place the name of Peniel, saying, I have seen God face to face, and still I am living.

31 And while he was going past Peniel, the sun came up. And he went with unequal steps because of his damaged leg.

32 For this reason the children of Israel, even today, never take that muscle in the hollow of the leg as food, because the hollow of Jacob's leg was touched.