1 Samuel 17:55

17:55 Now as Saul watched David going out to fight the Philistine, he asked Abner, the general in command of the army, “Whose son is this young man, Abner?” Abner replied, “As surely as you live, O king, I don’t know.”

1 Samuel 18:17

18:17 Then Saul said to David, “Here’s my oldest daughter, Merab. I want to give her to you in marriage. Only be a brave warrior for me and fight the battles of the Lord.” For Saul thought, “There’s no need for me to raise my hand against him. Let it be the hand of the Philistines!”

1 Samuel 29:8

29:8 But David said to Achish, “What have I done? What have you found in your servant from the day that I first came into your presence until the present time, that I shouldn’t go and fight the enemies of my lord the king?”