Romans 4:16-21 For this cause it is of faith, that it may be according to grace; to the end that the promise may be sure to all the seed; not to that only which is of the law, but to that also which is of the faith of Abraham, who is the father of us all

ASV⁽ⁱ⁾ ¹⁶ For this cause [it is] of faith, that [it may be] according to grace; to the end that the promise may be sure to all the seed; not to that only which is of the law, but to that also which is of the faith of Abraham, who is the father of us all ¹⁷ (as it is written, A father of many nations have I made thee) before him whom he believed, [even] God, who giveth life to the dead, and calleth the things that are not, as though they were. ¹⁸ Who in hope believed against hope, to the end that he might become a father of many nations, according to that which had been spoken, So shall thy seed be. ¹⁹ And without being weakened in faith he considered his own body now as good as dead (he being about a hundred years old), and the deadness of Sarah's womb; ²⁰ yet, looking unto the promise of God, he wavered not through unbelief, but waxed strong through faith, giving glory to God, ²¹ and being fully assured that what he had promised, he was able also to perform.