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

Christ's obedience is central to the doctrine of salvation, as outlined in Romans 5:19, which contrasts the disobedience of Adam with the obedience of Christ. This verse indicates that 'by the obedience of one shall many be made righteous.' The key theological point here is that Christ not only makes a possibility for salvation but effectively achieves it for His chosen people. Furthermore, 2 Corinthians 5:21 emphasizes the doctrine of substitution, stating, 'For He made Him who knew no sin to be sin for us, that we might become the righteousness of God in Him.' This signifies that believers are not declared righteous based on their works but receive righteousness through faith in Christ's obedience. Thus, Christ's atoning work is wholly sufficient to reconcile believers to God.