How do we know the righteousness of Christ is sufficient?

The sufficiency of Christ's righteousness is founded on His perfect obedience to the law and His sacrificial death. Romans 3 explains that Christ was put forth as a propitiation for our sins, satisfying God's wrath and establishing our justification through faith. This means that no works, traditions, or human efforts can add to Christ's completed work; His righteousness alone qualifies us before God. Moreover, our standing before God is not dependent on our achievements but entirely on faith in Christ, who has made us righteous and cleansed us from sin. Thus, believers can rest in the assurance that they are justified before God solely based on the righteousness of Christ.