Galatians 3:23-24 tells of the time before and after Christ when the vail was rent in two, after which time we can "come boldly unto the throne of grace, that we may obtain mercy, and find grace to help in time of need." (Heb 4:16 KJV).
If I am reading you correctly, it seems you want to be rid of the Ten Commandments that form the basis of our civil law? If that is the case, please remember we need to be obedient to our earthly rulers also.
Romans 13:1-7
Every person is to be in subjection to the governing authorities For there is no authority except from God, and those which exist are established by God. Therefore whoever resists authority has opposed the ordinance of God; and they who have opposed will receive condemnation upon themselves. For rulers are not a cause of fear for good behavior, but for evil. Do you want to have no fear of authority? Do what is good and you will have praise from the same.
1 Timothy 2:1-3
First of all, then, I urge that entreaties and prayers, petitions and thanksgivings, be made on behalf of all men, for kings and all who are in authority, so that we may lead a tranquil and quiet life in all godliness and dignity. This is good and acceptable in the sight of God our Savior,
Titus 3:1
Remind them to be subject to rulers, to authorities, to be obedient, to be ready for every good deed,
1 Peter 2:13-14
Submit yourselves for the Lord's sake to every human institution, whether to a king as the one in authority, or to governors as sent by him for the punishment of evildoers and the praise of those who do right.