1 Samuel 30:11-15

11And they found an Egyptian in the field, and brought him to David, and gave him bread, and he ate; and they gave him water to drink,

12and gave him a piece of fig-cake and two raisin-cakes, and he ate, and his spirit came again to him; for he had eaten no bread, nor drunk any water, for three days and three nights.

13And David said to him, To whom belongest thou? and whence art thou? And he said, I am a young man of Egypt, servant of an Amalekite; and my master left me, because three days ago I fell sick.

14We made a raid against the south of the Cherethites, and against what [belongs] to Judah, and against the south of Caleb; and we burned Ziklag with fire.

15And David said to him, Canst thou bring me down to this troop? And he said, Swear to me by 1God, that thou wilt neither put me to death nor deliver me up into the hand of my master, and I will bring thee down to this troop.