Esau gave them but an imperfect and a doubtful answer, as appears from Jacob's fear, Genesis 32:7. He brought four hundred men with him; either as his usual guard, he being then a great man in those parts; or in ostentation of his power and greatness, in spite of all the injury which his father or brother did him; or because at first he designed mischief to Jacob, as may seem by his dismissing of his messengers without any testimony of his favour, though afterwards, upon Jacob's prayer, God changed his mind.
Related Commentaries of Genesis 32:6
Genesis 32:6
6 And the messengers returned to Jacob, saying, We came to thy brother Esau, and also he cometh to meet thee, and four hundred men with him.