How do we know that Christ's righteousness is credited to believers?

The doctrine of imputation explains how Christ's righteousness is credited to believers. This takes place through faith as demonstrated in scriptures like Romans 3:21-22, which states that the righteousness of God is obtained apart from the law and is available to all who believe. This means that when one places their trust in Jesus Christ, His perfect righteousness becomes their own. This is largely due to the union that occurs between Christ and those whom He redeemed. Just as all were condemned in Adam, all who believe are justified and made righteous in Christ. Therefore, Christ’s righteousness is not only a legal standing but also a transformative and permanent state that affects how believers relate to God.