We cannot benefit from grace until we have benefited from the law.

How can we acknowledge transgression where there is no law? How can we be brought to acknowledge our guilty condition where there is no right that we have wronged?

"The law of the Lord is perfect converting the soul." Ps. 19:7.
"By the law is the knowledge of sin." Rom. 3:20
 Law leads to Christ. Gal. 3:24.

The law acquaints us with our sinful condition, the condemnation of transgression, and point us to the Remedy.

We cannot be recipients of grace until we have been recipients of the law.

If the law isn't binding grace is meaningless.