How do we know sin is harmful?

The harmful nature of sin is evident when we consider its destructive effects on relationships, both with God and others. Scripturally, sin not only brings individual destruction but also collective turmoil in society, fostering war, strife, and hardship, which can be traced back to human sinfulness. The alarming imagery of hell and its eternal torment serves as a stark warning against the allure of sin, proclaiming its ultimate detrimental reality. Romans 8:13 emphasizes the necessity of mortifying sin to secure life, underscoring its lethal character.