Without grace, we view life as a contract between us and God: we do good works, and in return he blesses us. When things go well, we’re filled with pride. But when things go badly, either we blame ourselves (and feel guilty) or we blame God (and feel bitter). Because we often leave God out of our explanations, this anger against God often feels ill-defined: we’re not even sure why we’re angry. But in actuality the contract or covenant between us and God already reads “Paid in full by the blood of Jesus.” Only when we grasp God’s grace are we free to serve him for his own sake, not for reward.