1 Kings 18:28-32

So they cried out with a loud voice, and cut themselves according to their custom with swords and lances until blood gushed out on them.

When midday was past, they raved until the time of the offering of the evening sacrifice; but there was no voice, no one answered, and no one paid attention.

Then Elijah said to all the people, “Come forward to me.” So all the people came forward to him. And he repaired the altar of the Lord which had been torn down.

Then Elijah took twelve stones, corresponding 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.”

And 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 measures of seed.