Unforgiveness, of course, is also quite powerful. Consider the many conflicts across the globe, and how they revolve around old hurts and grievances, ancient injustices, and bad blood between peoples that stretches all the way back to Ishmael and Isaac. How many families and how many marriages across time immemorial have been sundered by the inability and unwillingness to—I know it’s an old cliché, but it’s a great one—let go and let God? The choice to hold on to hurts and remember every wrong is both a wound and a sin that keeps on wounding.