" What is the technical word that describes wronging God and others by being unloving? Sin. The word means something that wrongs a relationship. It’s different from mistake or error or failing. It describes a relational betrayal, not just a personal failing. Sin means to wrong God by betraying love for him. Sin means to wrong other people by violating love for them. Interesting, isn’t it? The things that naturally most outrage you, those things that most universally upset human beings everywhere, are the very things that the Bible labels “sin.” We aren’t often taught that “sin” is what you ought to get upset about—what you often hate automatically—because it’s what God always gets upset about. "

― David A. Powlison , Good and Angry: Redeeming Anger, Irritation, Complaining, and Bitterness