Genesis 32:6-8

When the messengers returned to Jacob, they informed him, “We gave your brother Esau your message, and he himself is coming here to meet you. In fact, he’s on his way now with four hundred men!” Gripped with fear to the point of panic, Jacob split all the people who were with him into two camps, and also the flocks, herds, and camels. He said to himself, “If Esau attacks the first camp and destroys them, at least the other camp will escape.”