¹⁷ That is what the Scriptures mean when God told him, “I have made you the father of many nations.”^[a] This happened because Abraham believed in the God who brings the dead back to life and who creates new things out of nothing.

¹⁸ Even when there was no reason for hope, Abraham kept hoping—believing that he would become the father of many nations. For God had said to him, “That’s how many descendants you will have!”^{[b] 19} And Abraham’s faith did not weaken, even though, at about 100 years of age, he figured his body was as good as dead—and so was Sarah’s womb.

²⁰ Abraham never wavered in believing God’s promise. In fact, his faith grew stronger, and in this he brought glory to God. ²¹ He was fully convinced that God is able to do whatever he promises. ²² And because of Abraham’s faith, God counted him as righteous. ²³ And when God counted him as righteous, it wasn’t just for Abraham’s benefit. It was recorded ²⁴ for our benefit, too, assuring us that God will also count us as righteous if we believe in him, the one who raised Jesus our Lord from the dead. ²⁵ He was handed over to die because of our sins, and he was raised to life to make us right with God.

⁸ It was by faith that Abraham obeyed when God called him to leave home and go to another land that God would give him as his inheritance. He went without knowing where he was going. ⁹ And even when he reached the land God promised him, he lived there by faith—for he was like a foreigner, living in tents. And so did Isaac and Jacob, who inherited the same promise. ¹⁰ Abraham was confidently looking forward to a city with eternal foundations, a city designed and built by God.

¹¹ It was by faith that even Sarah was able to have a child, though she was barren and was too old. She believed^[a] that God would keep his promise.

¹⁷ It was by faith that Abraham offered Isaac as a sacrifice when God was testing him. Abraham, who had received God’s promises, was ready to sacrifice his only son, Isaac, ¹⁸ even though God had told him, “Isaac is the son through whom your descendants will be counted.”^{[a] 19} Abraham reasoned that if Isaac died, God was able to bring him back to life again. And in a sense, Abraham did receive his son back from the dead.