Genesis 22:8

6Abraham took the wood of the burnt offering and laid it on Isaac his son. He took in his hand the fire and the knife. They both went together.

7Isaac spoke to Abraham his father, and said, “My father?” He said, “Here I am, my son.” He said, “Here is the fire and the wood, but where is the lamb for a burnt offering?”

8Abraham said, “God will provide himself the lamb for a burnt offering, my son.” So they both went together.

9They came to the place which God had told him of. Abraham built the altar there, and laid the wood in order, bound Isaac his son, and laid him on the altar, on the wood.

10Abraham stretched out his hand, and took the knife to kill his son.