Hebrews 11:17-19

It was faith that made Abraham offer his son Isaac as a sacrifice when God put Abraham to the test. Abraham was the one to whom God had made the promise, yet he was ready to offer his only son as a sacrifice. God had said to him, “It is through Isaac that you will have the descendants I promised.” Abraham reckoned that God was able to raise Isaac from death—and, so to speak, Abraham did receive Isaac back from death.