Romans 4:13-25 - The Promise To Abraham Secured Through Faith
13 For, not through law, was the promise to Abraham, or to his seed, that he should be heir of the world, but it was through the righteousness of faith. 14 For, if those who are of the law are heirs, faith has been made void, and the promise has been brought to nought; 15 for the law works wrath; but where there is no law, there is no transgression.
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 has been written, "A father of many nations have I made you"), before God Whom he believed, Who maketh alive the dead, and calleth the things that are not, as though they were; 18 who, past hope, believed against hope, to the end that he might become the father of many nations, according to that which had been spoken, "So shall your seed be." 19 And, being not weakened in faith, he attentively considered his own body already dead (he being about a hundred years old), and the deadness of Sarah's womb; 20 but, in view of the promise of God, he wavered not through unbelief, but was made strong in faith, giving glory to God, 21 and being fully assured that what He had promised, He was able also to perform. 22 Wherefore also it was reckoned to him for righteousness. 23 Now it was not written for his sake alone, that it was reckoned to him; 24 but for ours also, to whom it will be reckoned, if we believe on Him Who raised Jesus our Lord from the dead; 25 Who was delivered up for our trespasses, and raised for our justification.