What you share here relates to the Epistle, Ephesians when it speaks of being formerly children of disobedience, but now children of obedience.
Jesus Christ completed the law in establishing it by our faith in Him. This also is dealt with by Paul. Jeus Christ completed the law in that He showed us how it is to be accomplished, by showing mercy where needed, being the only eternal Sacrifice for sins, His teaching on foods, and much more.
Torah has been completed by Jesus Chrisst's teaching all how to obey the law, and when we slip up, and we do slip up, He is our Mediator, our High Priest. We no longer have enmity with the law, for it has been revealed by our Lord and Master just what the law really is and how to obey, that is in what manner to obey. This is no longer being under a task master. It has made us masters of it in Jesus Christ. Children of obedienc, Obey the Law if you have been truly freed.