¹⁷ Abraham had faith. So when God tested him, Abraham offered Isaac as a sacrifice. Abraham had held on tightly to the promises. But he was about to offer his one and only son. ¹⁸ God had said to him, “Your family line will continue through Isaac.” (Genesis 21:12) Even so, Abraham was going to offer him up. ¹⁹ Abraham did this, because he believed that God could even raise the dead. In a way, he did receive Isaac back from death.