What does the Bible say about the righteousness of Christ?

In Luke 2:21-24, the circumcision of Jesus signifies His identification with the law and His role as the righteousness of His people. As Romans 8:3 mentions, Christ was sent in the likeness of sinful flesh to condemn sin, so that the righteousness of the law might be fulfilled in us who walk not after the flesh but after the Spirit. Christ's obedience is the only basis on which believers are made righteous, affirming that no one can achieve righteousness through their own efforts but solely through faith in Him.