How do we know that Christ's victory is sufficient for salvation?

The certainty of Christ's sufficiency for salvation is rooted in His accomplished work on the cross, where He paid the debt of our sins and satisfied God's justice. According to Romans, Christ's obedience leads to righteousness for all who believe. In the sermon, it is emphasized that our salvation hinges not on our efforts but solely on Christ's unblemished righteousness, which has infinite value. This demonstrates that Christ, as our champion, fully performed all that God requires for our salvation, ensuring that God justifies the ungodly based on faith in Him.