1 Samuel 18:14-15

David behaved himself wisely He headed them in all their expeditions, with a bravery and conduct equally distinguished; greatest in command, but greater in his example. He behaved in such a manner that no exception could be taken at any of his actions. The Lord was with him Made all his undertakings prosperous. Saul's fears, however, increased in proportion as he saw David still behave so well.