Moreover the Philistines had yet war - There is no mention of this war in the parallel place, 1 Chronicles 20:4, etc.
David waxed faint - This circumstance is nowhere else mentioned.
This, like the preceding paragraph 2 Samuel 21:1-14, is manifestly a detached and unconnected extract. It is probably taken from some history of David‘s wars, apparently the same as furnished the materials for 1 Chronicles 20:4-8, but omits David‘s adventure 2 Samuel 21:15-17.