Horizontally, death and life are in the power of the tongue (Proverbs 18:21). The temptation is to think, “But I’m not doing anything. It’s only words.” But words alone can bring a government down or establish peace, destroy a marriage or renew hope, crush a child’s sense of worth or lift him to confidence and joy, unify a church or splinter it into angry factions, send a soul to hell or to heaven. When we observe carefully the impact of our words, we see why God cares so intensely about them.