Genesis 33:1
And Jacob lifted up his eyes and looked, and behold, Esau was coming, and four hundred men with him. So he divided the children among Leah and Rachel and the two female servants.
Genesis 27:41-42
Now Esau hated Jacob because of the blessing with which his father had blessed him, and Esau said to himself, "The days of mourning for my father are approaching; then I will kill my brother Jacob."
Genesis 32:6-7
And the messengers returned to Jacob, saying, "We came to your brother Esau, and he is coming to meet you, and there are four hundred men with him."
Genesis 32:16
These he handed over to his servants, every drove by itself, and said to his servants, "Pass on ahead of me and put a space between drove and drove."