1 Samuel 18:8-9

18:8 This made Saul very angry. The statement displeased him and he thought, “They have attributed to David tens of thousands, but to me they have attributed only thousands. What does he lack, except the kingdom?” 18:9 So Saul was keeping an eye on David from that day onward.

1 Samuel 18:14-16

18:14 Now David achieved success in all he did, for the Lord was with him. 18:15 When Saul saw how very successful he was, he was afraid of him. 18:16 But all Israel and Judah loved David, for he was the one leading them out to battle and back.

1 Samuel 18:29-30

18:29 Saul became even more afraid of him. Saul continued to be at odds with David from then on. 18:30 Then the leaders of the Philistines would march out, and as often as they did so, David achieved more success than all of Saul’s servants. His name was held in high esteem.