David spares Saul’s life (1 Sam. 26). When David had an opportunity to kill Saul, he held back. He reasoned, “Who can lay a hand on the Lord’s anointed and be guiltless? As surely as the Lord lives … the Lord Himself will strike him; either his time will come and he will die, or he will go into battle and perish” (vv. 9–10). David’s trust in God was vividly demonstrated in his restraint. So too was his determination to do right, no matter how another provoked him. The New Testament expresses this principle in a different way. We are to do good to those who persecute us so that we can be like the Lord, who does good to His enemies (see Matt. 5:43–48). How important to learn to do good, even to those who try to do us harm.
Richards, Larry, and Lawrence O. Richards. The Teacher’s Commentary. Wheaton, IL: Victor Books, 1987. Print.