How do we know salvation through Jesus is the only way?

In John 14:6, Jesus declares, 'I am the way, the truth, and the life. No man cometh unto the Father, but by me.' This assertion establishes that salvation is exclusive to faith in Christ; it is not achieved by personal merit or any alternative pathways. Throughout Scripture, we see this truth reinforced: the sacrificial death of Jesus serves as the ultimate atonement for sin, evidenced by the Old Testament sacrifices foreshadowing His coming. Thus, salvation is rooted not in human effort, but in faith in the redemptive work of Christ as the appointed way designated by God.