1 Samuel 30:13-14

13Then David asked him, “To whom do you belong? Where are you from?” “I am a young Egyptian, the slave of an Amalekite,” he said. “My master abandoned me three days ago because I fell sick.

14We made a raid in the Negev of the Cherethites, and on Judah, and on the Negev of Caleb; also we burned Ziklag with fire.”