Genesis 32:6-8

Then the messengers returned to Jacob, saying, “We came to your brother Esau, and he also is coming to meet you, and four hundred men are with him.” So Jacob was greatly afraid and distressed; and he divided the people that were with him, and the flocks and herds and camels, into two companies. And he said, “If Esau comes to the one company and attacks it, then the other company which is left will escape.”