How do we know Jesus Christ is the only refuge for salvation?

The proclamation that Jesus is the only refuge is grounded in God’s sovereign declaration found in Isaiah 28:16, which states that He is a sure foundation. The New Testament repeatedly references this prophecy, indicating that Jesus fulfills it as the cornerstone of faith. Paul and Peter emphasize that salvation is found in a person, not in works or religious acts. Such assurance is echoed in Romans 10:9-10, emphasizing that belief in the heart and confession with the mouth leads to salvation, affirming Jesus as the sole source.