How do we know that we are justified by faith?

The doctrine of justification by faith is pivotal in Reformed theology, affirming that we are declared righteous before God solely based on Christ's merit. Romans 3:20 states that by the deeds of the law, no flesh will be justified. This means that our standing before God is not influenced by our actions but firmly anchored in Christ's redemptive work. The evidence of our justification is manifested through the transformative power of the Holy Spirit in our lives, enabling us to live according to God’s will as a response to His grace, thus confirming our faith.