Genesis 22:9-12

When they came to the place of which God had told him, Abraham built an altar there and arranged the wood, and bound Isaac his son and placed him on the altar, on top of the wood. [Matt 10:37] Abraham reached out his hand and took the knife to kill his son. [Heb 11:17-19] But the Angel of the LORD called to him from heaven and said, “Abraham, Abraham!” He answered, “Here I am.” The LORD said, “Do not reach out [with the knife in] your hand against the boy, and do nothing to [harm] him; for now I know that you fear God [with reverence and profound respect], since you have not withheld from Me your son, your only son [of promise].”