And it happened, the sun went down, and it was dark and behold, a smoking furnace, and a burning lamp passed between those pieces.

And Isaac spoke to Abraham his father and said, My father. And he said, Here am I, my son. And he said, Behold the fire and the wood. But where is the lamb for a burnt offering?

And Abraham said, My son, God will provide Himself a lamb for a burnt offering. So they both went together.