Romans 4:13-18 HCSB
For the promise to Abraham or to his descendants that he would inherit the world was not through the law, but through the righteousness that comes by faith. If those who are of the law are heirs, faith is made empty and the promise is canceled. For the law produces wrath. And where there is no law, there is no transgression.
This is why the promise is by faith, so that it may be according to grace, to guarantee it to all the descendants — not only to those who are of the law but also to those who are of Abraham’s faith. He is the father of us all in God’s sight. As it is written: I have made you the father of many nations. He believed in God, who gives life to the dead and calls things into existence that do not exist. He believed, hoping against hope, so that he became the father of many nations according to what had been spoken: So will your descendants be.
HCSB: Holman Christian Standard Bible