1 Samuel 30:9

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

⁸  And David inquired at the LORD, saying, Shall I pursue after this troop? shall I overtake them? And he answered him, Pursue: for thou shalt surely overtake them, and 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 abode behind, which 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 made him drink water;