What does the Bible say about sin and forgiveness in 1 John?

1 John points to the reality of sin in believers while also affirming the hope of forgiveness through Jesus Christ. The apostle John writes in 1 John 2:1-2 that he addresses his readers, calling them 'my little children,' emphasizing their position as forgiven children of God. He insists that while believers should not sin, they can rely on Christ as their advocate—interceding on their behalf before the Father—and as the propitiation for their sins, meaning He satisfies the demands of God’s justice. This dual aspect of the believer's experience of sin and forgiveness underscores the transformative power of the Gospel, which not only purifies but also enables believers to live out their faith authentically.