1st Samuel 30:8

5 And David`s two wives were taken captive, Ahinoam the Jezreelitess, and Abigail the wife of Nabal the Carmelite.

6 And David was greatly distressed; for the people spake of stoning him, because the soul of all the people was grieved, every man for his sons and for his daughters: but David strengthened himself in Jehovah his God.

7 And David said to Abiathar the priest, the son of Ahimelech, I pray thee, bring me hither the ephod. And Abiathar brought thither the ephod to David.

8 And David inquired of Jehovah, saying, If I pursue after this troop, shall I overtake them? And he answered him, Pursue; for thou shalt surely overtake [them], and shalt without fail recover [all].

9 So David went, he and the six hundred men that were with him, and came to the brook Besor, where those that were left behind stayed.

10 But David pursued, he and four hundred men; for two hundred stayed behind, who were so faint that they could not go over the brook Besor.

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