Genesis 22:6-8

New Revised Standard Version, Anglicised Catholic Edition

⁶ Abraham took the wood of the burnt-offering and laid it on his son Isaac, and he himself carried the fire and the knife. So the two of them walked on together. ⁷ Isaac said to his father Abraham, ‘Father!’ And he said, ‘Here I am, my son.’ He said, ‘The fire and the wood are here, but where is the lamb for a burnt-offering?’ ⁸ Abraham said, ‘God himself will provide the lamb for a burnt-offering, my son.’ So the two of them walked on together.