How do we know that salvation comes only through faith in Jesus Christ?

The central tenet of salvation in historic Reformed theology emphasizes the necessity of faith in Jesus Christ alone. Scripture declares Jesus as the Lamb of God (John 1:29), fulfilling the sacrificial system of the Old Testament, where the lamb took the place of sinners. This theological foundation asserts that no human works can redeem; rather, belief in Christ's finished work on the cross is the only means through which we can be justified before God. The Gospel calls sinners to look to Christ for salvation, highlighting that eternal life is found in Him alone and is received through faith, not by any merit of our own. This unwavering faith assures believers of their acceptance before God, as they stand in the righteousness of Christ.