Why is Christ alone the source of salvation?

The notion that Christ alone is the source of salvation is central to the Gospel message. In John 14:6, Jesus declares, 'I am the way, the truth, and the life: no man cometh unto the Father, but by me.' His life, death, and resurrection were the fulfillment of God's redemptive plan, satisfying divine justice while providing a way for sinners to be justified. The thief on the cross grasped this truth in his last moments. He recognized Christ as sinless and as his only hope of salvation. This points to the profound reality that all believers are justified not by their works but by faith in Christ's perfect righteousness. As 1 Corinthians 1:30 states, 'But of Him are ye in Christ Jesus, who of God is made unto us wisdom, and righteousness, and sanctification, and redemption.'