Genesis 25:26
When his brother came out with his hand clutching Esau's heel, they named him Jacob. Isaac was sixty years old when they were born.
Genesis 27:36
Esau exclaimed, "'Jacob' is the right name for him! He has tripped me up two times! He took away my birthright, and now, look, he has taken away my blessing!" Then he asked, "Have you not kept back a blessing for me?"
Hosea 12:3
In the womb he attacked his brother; in his manly vigor he struggled with God.
Genesis 38:28-30
While she was giving birth, one child put out his hand, and the midwife took a scarlet thread and tied it on his hand, saying, "This one came out first."