Galatians 2:19-21 ESV
For through the law, I died to the law, so that I might live to God. [20] I have been crucified with Christ. It is no longer I who live, but Christ who lives in me. And the life I now live in the flesh I live by faith in the Son of God, who loved me and gave himself for me. I do not nullify the grace of God, for if righteousness comes through the law, then Christ died needlessly. The broken law (what Colossians 2:14 refers to as the certificate of debt consisting of decrees against us) condemned me, and therefore, it is through the law I was assigned to execution. By the grace of God, the incarnate Christ clothed Himself in my humanity and took me in His person to the place of execution, and at the cross, in my place, and on my behalf, I was crucified with Christ. The only solution to fallen mankind was death and resurrection, and in the brilliant mind of God, He used my sin to accomplish that. Trying to live a righteous life before God by rolling up my spiritual sleeves and trying to keep the law only resulted in failure, but because the law (broken by my actions) condemned me to death, I died to the life of trying to please God, by my own sincere self-effort, and a new person rose from the grave in union with Christ, and it is no longer I who live, but it is Christ who is now living through me as a new self walking in righteousness. The grace of God is standing!