Genesis 22:3-7

So Abraham got up early in the morning and saddled his donkey, and took two of his young men with him and his son Isaac; and he split wood for the burnt offering, and set out and went to the place of which God had told him.

On the third day Abraham raised his eyes and saw the place from a distance.

Then Abraham said to his young men, “Stay here with the donkey, and I and the boy will go over there; and we will worship and return to you.”

And Abraham took the wood for the burnt offering and laid it on his son Isaac, and he took in his hand the fire and the knife. So the two of them walked on together.

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