I Samuel 30:11

On their further march they found an Egyptian lying exhausted upon the field; and having brought him to David, they gave him food and drink, namely "a slice of fig-cake (cf. Sa1 25:18), and raisin-cakes to eat; whereupon his spirit of life returned (i.e., he came to himself again), as he had neither eaten bread nor drunk water for three days."

When David was dismissed from the army of the Philistines he did not go over to the camp of Israel, but, being expelled by Saul, observed an exact neutrality, and silently retired to his own city Ziklag, leaving the armies ready to engage. Now here we are told, I. What a melancholy posture he found the city in, all laid waste by the Amalekites, and what distress it occasioned him and his men (Sa1 30:1-6). II. What course he took to recover what he had lost. He enquired of God, and took out a commission from him (Sa1 30:7, Sa1 30:8), pursued the enemy (Sa1 30:9, Sa1 30:10), gained intelligence from a straggler (Sa1 30:11-15), attacked and routed the plunderers (Sa1 30:16, Sa1 30:17), and recovered all that they had carried off (Sa1 30:18-20). III. What method he observed in the distribution of the spoil (Sa1 30:21-31).

30:11-12 David had once received bread when he was famished (21:3-7). He and his men helped this Egyptian man before they even knew his identity or his ability to help their cause.