Genesis 032:024-32 (New International Version)

²⁴ So Jacob was left alone, and a man wrestled with him till daybreak. ²⁵ When the man saw that he could not overpower him, he touched the socket of Jacob's hip so that his hip was wrenched as he wrestled with the man. ²⁶ Then the man said, "Let me go, for it is daybreak."
      But Jacob replied, "I will not let you go unless you bless me."

 ²⁷ The man asked him, "What is your name?"
      "Jacob," he answered.

 ²⁸ Then the man said, "Your name will no longer be Jacob, but Israel, ^[a] because you have struggled with God and with men and have overcome."

 ²⁹ Jacob said, "Please tell me your name."
      But he replied, "Why do you ask my name?" Then he blessed him there.

 ³⁰ So Jacob called the place Peniel, ^[b] saying, "It is because I saw God face to face, and yet my life was spared."

 ³¹ The sun rose above him as he passed Peniel, ^[c] and he was limping because of his hip. ³² Therefore to this day the Israelites do not eat the tendon attached to the socket of the hip, because the socket of Jacob's hip was touched near the tendon.