1 Kings 18:30-35

Then Elijah told the people, “Enough of that—it’s my turn. Gather around.” And they gathered. He then put the altar back together for by now it was in ruins. Elijah took twelve stones, one for each of the tribes of Jacob, the same Jacob to whom GOD had said, “From now on your name is Israel.” He built the stones into the altar in honor of GOD. Then Elijah dug a fairly wide trench around the altar. He laid firewood on the altar, cut up the ox, put it on the wood, and said, “Fill four buckets with water and drench both the ox and the firewood.” Then he said, “Do it again,” and they did it. Then he said, “Do it a third time,” and they did it a third time. The altar was drenched and the trench was filled with water.