How do we know that Christians are justified by faith alone?

The doctrine of justification by faith alone, or sola fide, is foundational to Reformed theology and is rooted in Scripture. Romans 3:28 clearly states, 'For we hold that one is justified by faith apart from works of the law.' This indicates that no amount of human effort can contribute to our righteousness before God. Furthermore, Ephesians 2:8-9 explains that salvation is a gift from God and not a result of works, ensuring that believers rely solely on Christ's atoning sacrifice for their justification. This assurance is key to understanding our relationship with God; it is grace that saves us, and faith is simply the means by which we receive that grace.