What does the Bible say about sin and transgression?

The Bible uses three specific terms—sin, transgression, and iniquity—to convey different aspects of our moral failures. Sin primarily relates to the fallen nature that we inherit, demonstrated in passages like 1 John 1:8, where we are reminded that 'if we say we have no sin, we deceive ourselves.' Transgression, on the other hand, describes the active rebellion or violation of God's commandments, as seen in various scripture references discussing the breaking of God’s law. Iniquity includes our flawed attempts at righteousness, which, according to Isaiah 64:6, are described as 'filthy rags.' Understanding these distinctions helps us appreciate the gravity of human sinfulness and the need for divine grace.