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

Then Abraham looked up and glanced around, and behold, behind him was a ram caught in a thicket by his horns. And Abraham went and took the ram and offered it up for a burnt offering (ascending sacrifice) instead of his son.

And he said, "Take thy only son Isaac whom thou lovest, and get thee unto the land of Moria, and sacrifice him there for a burnt offering upon one of the mountains which I will show thee."