16 This is why the promise is by faith, so that it may be according to grace, 4:16 Rm 3:24 to guarantee it to all the descendants 4:16 Rm 9:8; 15:8 — not only to the one who is of the law 4:16 Or not to the one who is of the law only but also to the one who is of Abraham’s faith. He is the father of us all.