1 Samuel 16:7

16:7 But the Lord said to Samuel, “Don’t be impressed by his appearance or his height, for I have rejected him. God does not view things the way men do. People look on the outward appearance, but the Lord looks at the heart.”

1 Samuel 24:8

24:8 Afterward David got up and went out of the cave. He called out after Saul, “My lord, O king!” When Saul looked behind him, David kneeled down and bowed with his face to the ground.