What has transgression of the law, got to do with the faith that Abraham is witnessed to have?

I think Romans is clear about law, and transgression, here is my understanding, if anyone wanted to answer feel free, or comments welcome. The law is a negative, nothing to do with the promises of God, no righteousness for the law, righteousness is through faith. So we hear about those of the law, that they are not heirs of the promises of life. **What does the law do, or serve as ?** It shows wrath in man, that is what the law works, transgression, and where there is no law, ( by faith) there is no transgression. > Romans 4:13 For the promise, that he should be the heir of the world, > was not to Abraham, or to his seed, through the law, but through the > righteousness of faith. 14 For if they which are of the law be heirs, > faith is made void, and the promise made of none effect: 15 Because > the law worketh wrath: for where no law is, there is no transgression So where there is no law there is no transgression, which is precisely what Romans 4:4-8 speaks, how those who do not work ( not in the law/not in transgression.) believe on Him who justifies the ungodly. ( Their faith is counted as righteousness.) Those in the law ( where there is transgression, by man working wrath) work, their reward is not of grace, they are IN DEBT. ( as many as are of the WORKS of the law/Cursed is every one THAT CONTINUES NOT in all things which are written in the book of the law to do them.) David also described the blessing of the man unto whom God imputes righteousness without works testifying, blessed are they whose iniquities are forgiven, and whose sins are covered. Blessed is the man to whom the Lord will not impute sin. ( the law works wrath, works transgression, where there is no law there is no transgression, as told clearly in this same passage, where righteousness without works is imputed, the man is blessed, whose iniquities are forgiven, whose sins are covered/ believing the promises of God is where there is no transgression/faith is imputed as righteousness.) > Romans 4:4 Now to him that worketh is the reward not reckoned of > grace, but of debt. 5 But to him that worketh not, but believeth on > him that justifieth the ungodly, his faith is counted for > righteousness. 6 Even as David also describeth the blessedness of the > man, unto whom God imputeth righteousness without works, 7 Saying, > Blessed are they whose iniquities are forgiven, and whose sins are > covered. 8 Blessed is the man to whom the Lord will not impute sin. > > Galatians 3:10 For as many as are of the works of the law are under > the curse: for it is written, Cursed is every one that continueth not > in all things which are written in the book of the law to do them.