How do we know Jesus Christ is the only Savior?

The Scriptures repeatedly affirm the exclusivity of Christ as the Savior throughout both the Old and New Testaments. In Acts 4:12, Peter points out that there is no other name given under heaven by which we must be saved, reinforcing the belief that Jesus is the only means by which God's people can attain salvation. Additionally, Isaiah 45:21 highlights God's declaration of Himself as the sole Savior. This truth is foundational to the faith of Reformed theology, as it emphasizes God's sovereign choice in providing salvation through His Son, who fulfills all righteousness for His people.