How do we know God's justification is without cause?

The doctrine of justification by faith teaches that believers are declared righteous by God, but this declaration has no cause in us. Romans 3:24 states that we are justified freely by God's grace through the redemption that is in Christ Jesus. This emphasizes that our standing before God is purely a result of His unmerited favor and not based on any actions or qualities within ourselves. Thus, justification is granted without cause, illustrating the gracious nature of God's salvation and how meritorious actions cannot earn His love or acceptance.