How do we know salvation is only through Jesus Christ?

The doctrine of salvation through Jesus Christ alone is one of the central tenets of Christian faith. Acts 4:12 clearly states that there is no other name under heaven given among men by which we must be saved. This exclusivity highlights the necessity of Christ's atoning work for redemption. In Philippians 3:9, Paul emphasizes that righteousness can only be found in Christ, not by our own works or adherence to the law. The understanding of salvation as a gift freely given by grace further underscores that it is not earned, but offered through Christ's finished work. It encapsulates the heart of the gospel message: that true salvation is rooted in faith in Jesus alone.