How do we know that righteousness comes from Christ?

Righteousness in the Christian context is the perfection laid out by God's law, which we cannot achieve on our own. Romans 4 explains that Abraham was counted as righteous based on his faith in God, emphasizing that righteousness is imputed to those who believe. Therefore, true righteousness is derived solely from Christ's perfect obedience and sacrifice. When we trust in Christ, our sins are transferred to Him, and His righteousness is credited to us, thereby satisfying the demands of God’s justice.