How do we know that salvation depends on Christ alone?

The doctrine of salvation by grace through faith in Christ alone is a central tenet of sovereign grace theology. Through passages like Romans 10:4 and 1 John 5:11-12, Scripture reveals that righteousness and eternal life are firmly rooted in the person of Jesus Christ. Christ's obedience to the law and His sacrificial death satisfied God's justice on behalf of His elect, securing their salvation. Therefore, salvation is wholly dependent on Christ's finished work, which believers are called to rest in rather than their own merits.