Genesis 22
2 Ref And he said to him, Take your son, your dearly loved only son Isaac, and go to the land of Moriah and give him as a burned offering on one of the mountains of which I will give you knowledge.
3 Ref And Abraham got up early in the morning, and made ready his ass, and took with him two of his young men and Isaac, his son, and after the wood for the burned offering had been cut, he went on his way to the place of which God had given him word.