1 Samuel 25:10-13

10But Nabal answered David’s servants and said, “Who is David? And who is the son of Jesse? There are many servants today, each of whom is breaking away from his master.

11So should I take my bread and my water and my meat that I have slaughtered for my shearers, and give it to men when I do not know where they are from?”

12So David’s young men made their way back and returned; and they came and told him everything that was said [to them by Nabal].

13David said to his men, “Each man put on your sword.” So each man put on his sword. David also put on his sword, and about four hundred men went up behind David while two hundred stayed back with the provisions and supplies.