How do we know faith in Christ is enough for salvation?

The sufficiency of faith in Christ for salvation is a central tenet of Reformed theology. According to Ephesians 2:8-9, our salvation is entirely a gift from God, not something we earn through our deeds. This means that our faith must rest in Christ’s righteousness and not in our own actions or spiritual performances. The gospel assures us that our hope of salvation is founded on Christ alone, who has fulfilled all righteousness on our behalf and invites us to look to Him for both our justification and assurance.