1 Samuel 25:10-13

10And Nabal answered David's servants and said, Who is David? and who is the son of Jesse? there are many servants now-a-days that break away every man from his master.

11And shall I take my bread, and my water, and my flesh which I have killed for my shearers, and give [it] to men whom I know not whence they are?

12And David's young men turned their way, and went back, and came and reported to him according to all those words.

13And David said to his men, Gird ye on every man his sword. And they girded on every man his sword; and David also girded on his sword; and there went up after David about four hundred men; and two hundred abode by the baggage.