How do we know that salvation is through Jesus Christ alone?

The doctrine of salvation through Jesus Christ is clearly articulated in scripture, particularly in Acts 4:12, where it states that there is no other name under heaven given among men by which we must be saved. This exclusivity of Christ is foundational to Reformed theology, which teaches that salvation is by grace alone, through faith alone, in Christ alone. In Psalm 48, where God’s greatness is celebrated, it reminds us that our status as the 'joy of the whole earth' and our standing as His people come solely through the redemptive work of Christ, as He alone fulfills the demands of God’s justice and offers Himself as the perfect sacrifice for sin.