1 Samuel 30:3-4, 6, 9-10

And when David and his men came to the city, behold, it was burned with fire; and their wives, and their sons, and their daughters, were taken captive. Then David and the people that were with him lifted up their voice and wept, until they had no more power to weep.

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.

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. 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.