Why is belief on Jesus Christ necessary for salvation?

Belief in Jesus Christ as the sole means of salvation is essential because He fully embodies God's plan for redemption. As stated in John 14:6, Jesus says, 'I am the way, the truth, and the life: no man cometh unto the Father, but by me.' This indicates that apart from faith in Christ, there is no access to the Father or eternal life. Further, belief in Jesus acknowledges our inability to save ourselves, recognizing that our salvation is based solely on His grace and merit. This belief manifests itself in relying not on our own works or righteousness, but wholly on the finished work of Christ on the cross, as He bore our sins and reconciled us to God.