David’s growing importance, fugitive as he was, is marked by this appeal to him for deliverance from the Philistines. The “threshing floors” were the natural objects of plunder Judges 6:11. Keilah was in the Shephelah (marginal reference), probably close to the Philistine border, but its site is uncertain.
Joshua 2:11 Samuel Joshua 23:1 Philippians 1