How do we know imputation of righteousness is true?

The doctrine of imputation tells us that our sins are legally credited to Christ and His righteousness is credited to us. As stated in Psalm 32, ‘Blessed is the man to whom the Lord imputeth not iniquity.’ This concept is not only profoundly comforting, but it is also biblically substantiated. In 2 Corinthians 5:21, we find that Christ was made sin for us so we might become the righteousness of God in Him. Thus, it is crucial for understanding the forgiveness of sins in the context of justification. When we trust in Christ, we are declared righteous on the basis of His righteousness, which is imputed to us because of God's grace.