How do we know that salvation is only through Jesus?

Salvation through Jesus is a core tenet of the Christian faith firmly grounded in Scripture. The Apostle Peter, under divine inspiration, clearly asserts in Acts 4:12 that there is no other name under heaven by which we must be saved. This declaration reinforces the notion that the gospel is not merely one of many options but the only true path to salvation. Furthermore, Jesus explicitly claims in John 14:6 that he is the only way to the Father, leaving no ambiguity regarding his unique role in salvation. Both the apostolic and Christological affirmations serve as foundational truths that underpin the exclusivity of the gospel.