Paul writes:
For if it is those of the law who are to be the heirs, faith is null and the promise is void. For the law brings wrath, but where there is no law there is no transgression. That is why it is of faith, in order that the promise may rest on grace and be guaranteed to all his offspring—not only to the one of the law but also to the one who shares the faith of Abraham, who is the father of us all
If the one or ones “of the law” completely changes meaning in that passage (Romans 4.14-16), then the agenda of the commentator (which may be a perfectly wonderful agenda, and Biblical too, in the wider sense) is misunderstanding the text.