1 Kings 18:38. The fire of the Lord fell — And not only, as at other times, (see the margin,) consumed the sacrifice and the wood, in token of God’s acceptance of the offering, but licked up all the water that was in the trench, exhaling and drawing it up as a vapour, to descend (with other water, to be raised from the adjoining sea) in the intended rain, which was to be the fruit of this sacrifice and prayer, more than the product of natural causes. And this was not all. To complete the miracle, the fire consumed the stones of the altar, and the very dust, to show that it was no ordinary fire, and perhaps to intimate that though God accepted this occasional sacrifice from this altar, yet for the future they ought to demolish all the altars on their high places, and for their constant sacrifices make use of that at Jerusalem only. Moses’s altar and Solomon’s were consecrated by fire from heaven; but this was destroyed, because it was to be used no more. We may well imagine, what a terror this fire struck on guilty Ahab, and all the worshippers of Baal, and how they fled from it as far and as fast as they could, saying, in their hearts, Lest it consume us also, Numbers 16:34.

18:21-40 Many of the people wavered in their judgment, and varied in their practice. Elijah called upon them to determine whether Jehovah or Baal was the self-existent, supreme God, the Creator, Governor, and Judge of the world, and to follow him alone. It is dangerous to halt between the service of God and the service of sin, the dominion of Christ and the dominion of our lusts. If Jesus be the only Saviour, let us cleave to him alone for every thing; if the Bible be the world of God, let us reverence and receive the whole of it, and submit our understanding to the Divine teaching it contains. Elijah proposed to bring the matter to a trial. Baal had all the outward advantages, but the event encourages all God's witnesses and advocates never to fear the face of man. The God that answers by fire, let him be God: the atonement was to be made by sacrifice, before the judgment could be removed in mercy. The God therefore that has power to pardon sin, and to signify it by consuming the sin-offering, must needs be the God that can relieve from the calamity. God never required his worshippers to honour him in the manner of the worshippers of Baal; but the service of the devil, though sometimes it pleases and pampers the body, yet, in other things, really is cruel to it, as in envy and drunkenness. God requires that we mortify our lusts and corruptions; but bodily penances and severities are no pleasure to him. Who has required these things at your hands? A few words uttered in assured faith, and with fervent affection for the glory of God, and love to the souls of men, or thirstings after the Lord's image and his favour, form the effectual, fervent prayer of the righteous man, which availeth much. Elijah sought not his own glory, but that of God, for the good of the people. The people are all agreed, convinced, and satisfied; Jehovah, he is the God. Some, we hope, had their hearts turned, but most of them were convinced only, not converted. Blessed are they that have not seen what these saw, yet have believed, and have been wrought upon by it, more than they that saw it.The fire of the Lord fell - This cannot have been a flash of lightning. It was altogether, in its nature as well as in its opportuneness, miraculous. Compare the marginal references for the conduct of the people. 21-40. Elijah said unto all the people, How long halt ye?—They had long been attempting to conjoin the service of God with that of Baal. It was an impracticable union and the people were so struck with a sense of their own folly, or dread of the king's displeasure, that they "answered not a word." Elijah proposed to decide for them the controversy between God and Baal by an appeal, not to the authority of the law, for that would have no weight, but by a visible token from Heaven. As fire was the element over which Baal was supposed to preside, Elijah proposed that two bullocks should be slain and placed on separate altars of wood, the one for Baal, and the other for God. On whichever the fire should descend to consume it, the event should determine the true God, whom it was their duty to serve. The proposal, appearing every way reasonable, was received by the people with unanimous approval. The priests of Baal commenced the ceremony by calling on their god. In vain did they continue invoking their senseless deity from morning till noon, and from noon till evening, uttering the most piercing cries, using the most frantic gesticulations, and mingling their blood with the sacrifice. No response was heard. No fire descended. Elijah exposed their folly and imposture with the severest irony and, as the day was far advanced, commenced his operations. Inviting the people to approach and see the entire proceeding, he first repaired an old altar of God, which Jezebel had demolished. Then, having arranged the cut pieces of the bullock, he caused four barrels or jars of water to be dashed all over the altar and round in the trench. Once, twice, a third time this precaution was taken, and then, when he had offered an earnest prayer, the miraculous fire descended (Le 9:24; Jud 6:21; 13:20; 1Ch 21:26; 2Ch 7:1), and consumed not only the sacrifice, but the very stones of the altar. The impression on the minds of the people was that of admiration mingled with awe; and with one voice they acknowledged the supremacy of Jehovah as the true God. Taking advantage of their excited feelings, Elijah called on them to seize the priestly impostors, and by their blood fill the channel of the river (Kishon), which, in consequence of their idolatries, the drought had dried up—a direction, which, severe and relentless as it seems, it was his duty as God's minister to give (De 15:5; 18:20). The natural features of the mount exactly correspond with the details of this narrative. The conspicuous summit, 1635 feet above the sea, on which the altars were placed, presents an esplanade spacious enough for the king and the priests of Baal to stand on the one side, and Elijah on the other. It is a rocky soil, on which there is abundance of loose stones, to furnish the twelve stones of which the altar was built—a bed of thick earth, in which a trench could be dug; and yet the earth not so loose that the water poured into it would be absorbed; two hundred fifty feet beneath the altar plateau, there is a perennial fountain, which, being close to the altar of the Lord, might not have been accessible to the people; and whence, therefore, even in that season of severe drought, Elijah could procure those copious supplies of water which he poured over the altar. The distance between this spring and the site of the altar is so short, as to make it perfectly possible to go thrice thither and back again, whereas it would have been impossible once in an afternoon to fetch water from the sea [Van De Velde]. The summit is one thousand feet above the Kishon, which nowhere runs from the sea so close to the base of the mount as just beneath El-Mohhraka; so that the priests of Baal could, in a few minutes, be taken down to the brook (torrent), and slain there. No text from Poole on this verse.

Then the fire of the Lord fell,.... An extraordinary fire from God out of heaven, as the effects of it show:

and consumed the burnt sacrifice; as it had done in former instances, Leviticus 9:24, and besides this, which is still more extraordinary,

and the wood, and the stones, and the dust; of the altar, thereby signifying that even such were not to be used any more:

and licked up the water that was in the trench; around the altar, see 1 Kings 18:32.

Then the fire of the LORD fell, and consumed the burnt sacrifice, and the wood, and the stones, and the dust, and licked up the water that was in the trench.