'Brook' in the Bible

He took his staff in his hand, and chose for himself five smooth stones out of the brook, and put them in the shepherd's bag which he had, even in his wallet. His sling was in his hand; and he drew near to the Philistine.

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

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

David came to the two hundred men, who were so faint that they could not follow David, whom also they had made to stay at the brook Besor; and they went forth to meet David, and to meet the people who were with him. When David came near to the people, he greeted them.