Cold, a ravine or brook in the extreme south-west of Judah, where 200 of David’s men stayed behind because they were faint, while the other 400 pursued the Amalekites (1 Sam. 30:9, 10, 21). Probably the Wadyes Sheriah, south of Gaza.
Besor
A brook can stop an army. David and six hundred men are chasing raiders who burned their town, and at the brook Besor two hundred of them are “so faint that they could not go over” (1 Samuel 30:10). The rest go on. When David returns, he does not leave the weary ones out, but “saluted them” (1 Samuel 30:21). The chapter goes on to say what he decides about sharing the recovered goods with those who stayed behind. It is a short, human scene about tiredness and fairness. Read 1 Samuel 30.
3 verses
1 Samuel
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 abode behind, which were so faint that they could not go over the brook Besor.
And David came to the two hundred men, which were so faint that they could not follow David, whom they had made also to abide at the brook Besor: and they went forth to meet David, and to meet the people that were with him: and when David came near to the people, he saluted them.
From Easton's Bible Dictionary
Matthew George Easton, 1897