How do we know justification through faith in Christ is true?

The doctrine of justification is central to the gospel and is grounded in the faithfulness of Christ rather than our works. In Galatians 2:16, Paul states that a man is not justified by the works of the law but by faith in Jesus Christ. This is affirmed throughout the scriptures, particularly in Romans 4:6, where righteousness is imputed without works. Believers are justified because Christ, as our representative, bore the penalty for our sins and provided the righteousness we need. Thus, justified by faith, we stand forgiven and accepted in the sight of God, a truth richly supported by scripture.