The kingdom of Christ is not about removing or abolishing the righteous requirements of the Law.  All that God condemns about sin is absolute!  The purpose of law was not to justify the law-breaker (sinner) but to point out the sinner’s need for righteousness!  Christ Jesus is the fulfillment of everything God has to say about sin and righteousness!

— Everything the Law demanded was accomplished in Christ Jesus –Matt 5: 17-18

–Everything written about Christ in the Law and the Prophets was fulfilled — Luke 24: 25-27, 44

–The Law made clear the need for righteousness because of sin — Rom 3: 19–20

–In Christ – Righteousness is fully met in those who do not live according to the sinful nature but according to the Spirit — Rom 8:4