Genesis 25:26
And after him, his brother came out, gripping Esau's foot; and he was named Jacob: Isaac was sixty years old when she gave birth to them.
Genesis 27:36
And he said, Is it because he is named Jacob that he has twice taken my place? for he took away my birthright, and now he has taken away my blessing. And he said, Have you not kept a blessing for me?
Hosea 12:3
In the body of his mother he took his brother by the foot, and in his strength he was fighting with God;
Genesis 38:28-30
And while she was in the act of giving birth, one of them put out his hand; and the woman who was with her put a red thread round his hand, saying, This one came out first.