1 Samuel 29:8-9

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?” 29:9 Achish replied to David, “I am convinced that you are as reliable ¹  as the angel of God! However, the leaders of the Philistines have said, ‘He must not go up with us in the battle.’

[29:9]  ¹ tn Heb “I know that you are good in my eyes.”