Hebreus 11

It was because Abraham, Isaac, Joseph, Moses, the Israelite people, and Rahab trusted God that he blessed them.

17 It was because Abraham trusted God that he was ready to kill his son Isaac as a sacrifice when God tested him. This same man to whom God promised to give ◄a son/many descendants► was going to sacrifice that same son, the only son whom his own wife had borne! 18 It was to Abraham that God said, "It is only from Isaac that I will consider your family to descend." 19 Abraham considered that to fulfill that promise, God could make Isaac live again even if he had died after Abraham sacrificed him! The result was that when Abraham did receive Isaac back after God told him not to harm Isaac, it was as though he received him back even after he died.