Genesis 22
9 Ref And they came to the place of which God had given him knowledge; and there Abraham made the altar and put the wood in place on it, and having made tight the bands round Isaac his son, he put him on the wood on the altar.
10 Ref And stretching out his hand, Abraham took the knife to put his son to death.
11 Ref But the voice of the angel of the Lord came from heaven, saying, Abraham, Abraham: and he said, Here am I.
12 Ref And he said, Let not your hand be stretched out against the boy to do anything to him; for now I am certain that the fear of God is in your heart, because you have not kept back your son, your only son, from me.