Poole's Outline of 1 Samuel 21: David's Flight to Philistia
David cometh to Nob to Ahimelech the priest; pretendeth secret business from Saul; asketh bread: Ahimelech giveth him the shew-bread, 1-6. Doeg seeth this, 7. David asketh arms: Ahimelech giveth him Goliath’s sword, 8, 9. David cometh to Achish; is known; and afraid; feigneth himself mad, 10-13. Achish is angry with his servants for bringing him, 14, 15.