How do we know that Christ fulfills the law for believers?

The relationship of the believer to the law and to Christ is fundamentally transformed by Christ’s work. Paul presents that Christ's death satisfies the legal demands of the law and redeems believers from its condemnation. Galatians 4:4-5 tells us that God sent His Son, born under the law, to redeem those under the law. Hence, through His death and resurrection, Christ fulfills the law's requirements on behalf of His people, enabling them to live in the newness of the spirit rather than being bound by the letter of the law.