1 Samuel 30:13-14

13Then David said to him, “To whom do you belong, and where are you from?” And he said, “I am a young man from Egypt, servant of an Amalekite; and my master left me behind, because three days ago I fell sick.

14We made an invasion of the southern area of the Cherethites, in the territory which belongs to Judah, and of the southern area of Caleb; and we burned Ziklag with fire.”