How do we know the doctrine of sin is true?

The doctrine of sin is universally affirmed in Scripture and is foundational to understanding the human condition in light of God’s holiness. Jeremiah 17:9 states, 'The heart is deceitful above all things, and desperately sick; who can understand it?' This passage captures the essence of humanity’s fallen state, showing that all have sinned and fall short of the glory of God (Romans 3:23). Additionally, the pervasiveness of sin is evident throughout Scripture, where both the Old and New Testaments detail humanity's propensity towards sinfulness, starting from Adam's fall in Genesis and leading to the explicit declarations of sin in the epistles.

Furthermore, the acknowledgment of sin and its implications fosters a deeper understanding of grace. The more a person grasps the depth of their sin, the more they can appreciate the grace offered through Christ. The recognition that we are all in need of a Savior who deals with sin decisively on the cross is integral to the Gospel message. Through recognizing our sin, we become aware of our need for redemption, contributing to a richer understanding of the Christian faith and the love of God demonstrated in Jesus Christ.