Romans 4:14-20

¹⁴For if they that are of the Law are heirs, then faith becometh a vain thing, and the promise is made of no effect.

¹⁵For the Law is the cause of wrath; for where there is no law there is no transgression.

¹⁶Therefore the inheritance was made to depend on faith, that it might be a matter of grace; that the promise might be sure to all the offspring, not to that only which is under the Law, but to that also which hath the faith of Abraham, who is the father of us all

¹⁷(as it is written, “I have made thee a father of many nations”) in the sight of that God whom he believed, who giveth life to the dead, and calleth the things that are not, as though they were.

¹⁸For he had confident hope in that which was past hope, that he should become a father of many nations, according to that which was spoken, “Thus shall thy offspring be;”

¹⁹and not being weak in faith, he regarded not his own body which had become dead, he being about a hundred years old, nor the deadness of Sarah's womb;

²⁰nor did he waver in respect to the promise of God through unbelief, but was strong in faith, giving glory to God;