Genesis 32:6-8

6When the messengers returned to Jacob, they said, “We went to your brother Esau, and now he is coming to meet you, and four hundred men are with him.” 7In great fear and distress Jacob divided the people who were with him into two groups, Or camps and the flocks and herds and camels as well.

8He thought, “If Esau comes and attacks one group, Or camp the group Or camp that is left may escape.”