Yes! You accidentally said something correct. The New Covenant is between believers and God and a covenant (look this up) is a conditional agreement between two or more parties. Saved people are part to this covenant which states " I will put my laws into their minds, and write them on their hearts, and I will be their God, and they shall be my people.".
However for the non-believers or misled denominations that make their own rules are not part of this Covenant and therefore under the condemnation of the Law.
If you excessively speed on the highway, you will be ticketed and come under the purview of law enforcement. For those compliant with the speed limit are not under the condemnation of the law.
There is nothing accidental about what I said.