How do we know that imputation is true in Christian theology?

The doctrine of imputation is foundational in Reformed theology and is evidenced in several crucial biblical texts. Romans 4:3-8 highlights that Abraham's faith was counted to him as righteousness, which exemplifies the principle of imputation where God attributes Christ's righteousness to believers. Moreover, in understanding 2 Corinthians 5:21, we see that Christ takes on the sins of His people through imputation, allowing for justification by faith alone. This principle is also affirmed in Galatians 2:16, reinforcing the belief that one is justified not by works but through faith in Jesus Christ.

Throughout church history, esteemed theologians such as John Calvin and John Gill have articulated this process. Calvin explains that righteousness is not a quality inherent in us but is imparted through God's grace, while Gill comments on how Christ became sin by imputation instead of through any act of His own. This understanding closes the gap between the believer's sinfulness and God's righteous demands, showcasing the depth of grace in the gospel message.