Romans 4:17-19

ISV(i) 17 As it is written, “I have made you the father of many nations.” Abraham acted in faith when he stood in the presence of God, who gives life to the dead and calls into existence things that don’t yet exist. 18 Hoping in spite of hopeless circumstances, he believed that he would become “the father of many nations,” just as he had been told: “This is how many descendants you will have.” 19 His faith did not weaken when he thought about his own body (which was already as good as dead now that he was about a hundred years old) or about Sarah’s inability to have children,