Moreover the Philistines had yet war again with Israel; and David went down, and his servants with him, and fought against the Philistines: and David grew faint.
All Commentaries on 2 Samuel 21:15 Go To 2 Samuel 21
George Leo Haydock
AD 1849
Again: it is not certain at what time. Some think it was towards the beginning of David's reign, since he leads his men to battle; or the Philistines might have made an irruption into his dominions, about three years after the death of Absalom. (Calmet)
David had offered to put himself at the head of the army, against his son, chap. xviii. 2. (Haydock)
Faint. He was now sixty-four years old. (Salien)