In 1 Samuel 18-20, we begin to see Saul's sanity unravel, as he becomes jealous of the Spirit of God being with David but no longer himself. \n\nIn our three chapters we see the progression take places in three ways:\n1. Saul resents David (18)\n2. Saul persecutes David (19)\n3. Saul forces David to flee. (20)