Flavius Josephus, Antiquities of the Jews
William Whiston, A.M., Ed.

[335] So when Obadiah had informed the king that Elijah was there, Ahab met him, and asked him, in anger, if he were the man that afflicted the people of the Hebrews, and was the occasion of the drought they lay under? But Elijah, without any flattery, said that he was himself the man, he and his house, which brought such sad afflictions upon them, and that by introducing strange gods into their country, and worshipping them, and by leaving their own, who was the only true God, and having no manner of regard to him. However, he bade him go his way, and gather together all the people to him to Mount Carmel, with his own prophets, and those of his wife, telling him how many there were of them, as also the prophets of the groves, about four hundred in number. And as all the men whom Ahab sent for ran away to the forenamed mountain, the prophet Elijah stood in the midst of them, and said, "How long will you live thus in uncertainty of mind and opinion?" He also exhorted them, that in case they esteemed their own country God to be the true and the only God, they would follow him and his commandments; but in case they esteemed him to be nothing, but had an opinion of the strange gods, and that they ought to worship them, his counsel was, that they should follow them. And when the multitude made no answer to what he said, Elijah desired that, for a trial of the power of the strange gods, and of their own God, he, who was his only prophet, while they had four hundred, might take a heifer and kill it as a sacrifice, and lay it upon pieces of wood, and not kindle any fire, and that they should do the same things, and call upon their own gods to set the wood on fire; for if that were done, they would thence learn the nature of the true God. This proposal pleased the people. So Elijah bade the prophets to choose out a heifer first, and kill it, and to call on their gods. But when there appeared no effect of the prayer or invocation of the prophets upon their sacrifice, Elijah derided them, and bade them call upon their gods with a loud voice, for they might either be on a journey, or asleep; and when these prophets had done so from morning till noon, and cut themselves with swords and lances, ¹ according to the customs of their country, and he was about to offer his sacrifice, he bade [the prophets] go away, but bade [the people] come near and observe what he did, lest he should privately hide fire among the pieces of wood. So, upon the approach of the multitude, he took twelve stones, one for each tribe of the people of the Hebrews, and built an altar with them, and dug a very deep trench; and when he had laid the pieces of wood upon the altar, and upon them had laid the pieces of the sacrifices, he ordered them to fill four barrels with the water of the fountain, and to pour it upon the altar, till it ran over it, and till the trench was filled with the water poured into it. When he had done this, he began to pray to God, and to invocate him to make manifest his power to a people that had already been in an error a long time; upon which words a fire came on a sudden from heaven in the sight of the multitude, and fell upon the altar, and consumed the sacrifice, till the very water was set on fire, and the place was become dry.