I Kings 18:30-33

Then Elijah said to all the people, “Come near to me.” So all the people came near to him. And he repaired the altar of the LORD that was broken down. And Elijah took twelve stones, according to the number of the tribes of the sons of Jacob, to whom the word of the LORD had come, saying, “Israel shall be your name.” Then with the stones he built an altar in the name of the LORD; and he made a trench around the altar large enough to hold two seahs of seed. And he put the wood in order, cut the bull in pieces, and laid it on the wood, and said, “Fill four waterpots with water, and pour it on the burnt sacrifice and on the wood.”