Romans 4:16-21 For this reason, it is through faith that it might be by favor, that the promise might 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:

Living_Oracles⁽ⁱ⁾ ¹⁶ For this reason, it is through faith that it might be by favor, that the promise might 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, "Surely a father of many nations have I constituted you,") in the presence of him whom he believed, even of God, who makes alive the dead, and calls things which exist not, as though they existed. ¹⁸ He, contrary to hope, believed with hope, that he should be a father of many nations, according to what was spoken, "So shall your seed be." ¹⁹ And not being weak in faith, he did not consider his own body now dead, being about a hundred years old; neither the deadness of Sarah's womb. ²⁰ Therefore, against the promise of God, through unbelief, he did not dispute; but was strong in faith, giving glory to God. ²¹ And was fully persuaded that what was promised, he was able to perform.