Genesis 32:6-8

The messengers returned to Jacob, saying, “We went to your brother Esau, and now he is coming to meet you, and there are four hundred men with him.” Jacob was greatly afraid and distressed; and he divided the people who were with him, and the flocks and herds and camels, into two camps; and he said, “If Esau comes to the one camp and attacks it, then the other camp which is left will escape.”