How do we know that the doctrine of grace is true?

The doctrine of grace, especially as seen in Romans 5:1-2, assures us that we are justified by faith through grace alone, emphasizing that salvation is God's unearned gift. This truth is central in the New Testament, where it is stated that God has made a new covenant of grace that enables sinners to come into relationship with Him. Ephesians 2:8-9 further reinforces that salvation is not by works but by grace through faith, showcasing the themes of God’s mercy and the sufficiency of Christ's sacrifice. Thus, we can be confident in the truth of grace through its consistent biblical testimonies.