1 Samuel 24:7,8

And suffered them not to rise against Saul He not only would not do this ill thing himself, but he would not suffer those about him to do it. Thus did he render good for evil to him, from whom he had received evil for good; and was herein both a type of Christ, who saved his persecutors, and an example to all Christians, not to be overcome of evil, but to overcome evil with good. David also went out of the cave, and cried after Saul A bold attempt this, to adventure to come into the presence of such an enraged enemy. But his innocence, and confidence in God, imboldened him, especially having so strong an evidence to give of his integrity.