How do we know that salvation is through faith alone?

The doctrine of salvation by faith alone is rooted in the teachings of Scripture, particularly evident in passages like Ephesians 2:8-9, which emphasizes that it is by grace we are saved, through faith. This understanding is consistent with the doctrine of sovereign grace, recognizing that salvation is not based on human effort or merit, but solely on God's grace. Moreover, this is echoed in Romans 3:28, where Paul asserts that a person is justified by faith apart from the works of the law. This foundational belief assures Christians that their standing before God is secure, resting on Christ's finished work rather than their own actions.