1 Samuel 30:9-12

9So David went, he and the six hundred men who were with him, and came to the brook Besor; there those [who could not continue] remained behind.

10But David pursued [the Amalekites], he and four hundred men, for two hundred who were too exhausted to cross the brook Besor stayed behind.

11They found an Egyptian [who had collapsed] in the field and brought him to David, and gave him bread and he ate, and they gave him water to drink,

12and they gave him a piece of a fig cake and two clusters of raisins; and when he had eaten, his energy returned, for he had not eaten bread or had any water to drink for three days and three nights.