Good should not be paid back with evil. They dig a pit to take my life. Remember how I stood in your presence and pleaded for them in order to turn your anger away from them.
Don’t be like Cain. He was a child of the evil one and murdered his brother. And why did Cain murder his brother? Because the things Cain did were evil and the things his brother did had God’s approval.
David and his men went to Keilah, fought the Philistines, drove off their livestock, and decisively defeated them. So David rescued the people who lived in Keilah.
David had thought, “I guarded this man’s stuff in the desert for nothing! Not one of his possessions was missing. Yet, he has paid me back with evil when I was good to him.