In 1 Samuel 18:10-12, we see Saul, insane with jealousy and bitterness trying to kill David. At the peaceful, royal quarters in Gibeah, an “evil/troubling spirit sent from God came powerfully on Saul.”
Saul flung his spear at David with the intention of pinning him to the wall (1 Samuel 18:11). David’s willingness to remain in the room long enough for Saul to retrieve the spear after the failed first attempt and then take a second shot at him portrays the incredible depth of David’s loyalty to the king and his commitment to help Saul.
Ironically, the spear episode incited fear—not in David, but in Saul. Saul reasoned correctly that the only way the young man was able to evade the point of his spear at such close range was that “the Lord was with David but had left Saul” (1 Samuel 18:2).
1 Samuel 18:13-15 is a recap of Saul’s bitter experiences. Saul sent David and made him commander over a thousand men. David led the troops and continued to be successful in all his activities because the Lord was with him. When Saul observed that David was very successful, he dreaded him.