Galatians 3:12 The law is not based on faith; on the contrary, it says, “The person who does these things will live by them.”
The law is not the law just because we believe it is; it is the law because that is what is written down and was set out in the beginning.
If we agree to abide by the law, then we agree to live by those rules; it is our choice, but it does not change the law!
If we do have faith in what is written down we will live by those laws written down, or at least try to because we do have hope in what will come out of them.
The law is still the law…