This document discusses the sin of envy and how it can cripple people spiritually and in their relationships. It provides several biblical examples of how envy led to problems between people. The key teachings are that envy is a sin that stems from discontentment and wanting what others have rather than appreciating one's own blessings. To deal with envy, the document recommends humbling oneself before God, resisting the devil, purifying one's heart, and submitting one's will to God rather than desires of the flesh.