How do we know Christ is the only way to be saved?

The exclusivity of Christ as the means of salvation is a central tenet of Reformed theology. Acts 4:12 explicitly affirms that there is no other name under heaven given among men by which we must be saved. This doctrine underscores our need for a mediator who is both fully God and fully man, capable of bearing the sins of His people. Paul preached this truth vigorously, emphasizing that our own righteousness is inadequate for salvation, as seen in Isaiah 64:6, which states that all our righteousness is like filthy rags. Recognizing Christ's sinless nature and His sacrificial atonement is essential for understanding the need for grace alone in the salvation process.