1st Samuel 30:10

7 And David said to Abiathar the priest, the son of Ahimelech, Come here to me with the ephod. And Abiathar took the ephod to David.

8 Then David, questioning the Lord, said, Am I to go after this band? will I be able to overtake them? And in answer he said, Go after them, for you will certainly overtake them, and get back everything.

9 So David went, and his six hundred men went with him, and they came to the stream Besor.

10 And David, with four hundred men, went on: but two hundred of them were overcome with weariness, and not able to go across the stream.

11 And in the fields they saw an Egyptian whom they took to David, and they gave him bread, and he had a meal, and they gave him water for drink;

12 And they gave him part of a cake of figs and some dry grapes; and after the food, his spirit came back to him, for he had had no food or drink for three days and nights.

13 And David said to him, Whose man are you and where do you come from? And he said, I am a young man of Egypt, servant to an Amalekite; and my master went on without me because three days back I became ill.