Sin entered the world through Adam's disobedience, bringing spiritual and physical death to all humanity. Before this, people lived in perfect relationship with God, creation, and each other. While Adam's single trespass brought condemnation to all, Christ's gift of grace abundantly overcomes countless sins, bringing justification and life. Where sin increased, God's grace abounded even more. Through Christ, we move from being spiritually dead to spiritually alive, with grace reigning through righteousness leading to eternal life.