Genesis 33:1
Now Jacob looked up and saw Esau coming toward him with 400 men. So he divided the children among Leah, Rachel, and the two female slaves.
Genesis 27:41-42
Esau held a grudge against Jacob because of the blessing his father had given him. And Esau determined in his heart: “The days of mourning for my father are approaching; then I will kill my brother Jacob.”
Genesis 32:6-7
When the messengers returned to Jacob, they said, “We went to your brother Esau; he is coming to meet you—and he has 400 men with him.”
Genesis 32:16
He entrusted them to his slaves as separate herds and said to them, “Go on ahead of me, and leave some distance between the herds.”