How do we know that our sin is forgiven in God's eyes?

The assurance of forgiveness for believers is rooted in the completed work of Jesus Christ on their behalf. In 2 Samuel 22:25, David expresses confidence in God’s salvation based on his righteousness in God's sight. This illustrates the core belief that through faith, our sins are forgiven, and we are declared righteous. Furthermore, passages like Psalm 32 affirm the blessedness of those whose transgressions are forgiven. The doctrine of substitution tells us that Christ's sacrifice satisfies God’s justice and allows us to be seen as clean in His eyes, giving believers confidence in their position before God.