1 Samuel 18:5-16, 27b-30
David went out and was successful wherever Saul sent him; as a result, Saul set him over the army. And all the people, even the servants of Saul, approved.
As they were coming home, when David returned from killing the Philistine, the women came out of all the towns of Israel, singing and dancing, to meet King Saul, with tambourines, with songs of joy, and with musical instruments. And the women sang to one another as they made merry,
"Saul has killed his thousands,
and David his ten thousands."
Saul was very angry, for this saying displeased him. He said, "They have ascribed to David ten thousands, and to me they have ascribed thousands; what more can he have but the kingdom?" So Saul eyed David from that day on.
Saul Tries to Kill David
The next day an evil spirit from God rushed upon Saul, and he raved within his house, while David was playing the lyre, as he did day by day. Saul had his spear in his hand; and Saul threw the spear, for he thought, "I will pin David to the wall." But David eluded him twice.
Saul was afraid of David, because the LORD was with him but had departed from Saul. So Saul removed him from his presence, and made him a commander of a thousand; and David marched out and came in, leading the army. David had success in all his undertakings; for the LORD was with him. When Saul saw that he had great success, he stood in awe of him. But all Israel and Judah loved David; for it was he who marched out and came in leading them.
Saul gave him his daughter Michal as a wife. But when Saul realized that the LORD was with David, and that Saul's daughter Michal loved him, Saul was still more afraid of David. So Saul was David's enemy from that time forward.
Then the commanders of the Philistines came out to battle; and as often as they came out, David had more success than all the servants of Saul, so that his fame became very great.