1 Samuel 30:2

They slew not any. — There was no one in the hapless city to resist the attack of the fierce sons of the desert. David — never dreaming of the sudden invasion — had marched with Achish, accompanied by his whole force. The Amalekites slew none of their captives; they were, we read, women and children. These possessed a marketable value, and were carried off to be sold into slavery, probably in Egypt, with which country the Amalekites, as neighbours, had constant dealings. We read a few verses on specially of an Egyptian slave in the army.