Israel being thus far reformed that they had acknowledged the Lord to be God, and had consented to the execution of Baal's prophets, that they might not seduce them any more, though this was far short of a thorough reformation, yet it was so far accepted that God thereupon opened the bottles of heaven, and poured out blessings upon his land, that very evening (as it should seem) on which they did this good work, which should have confirmed them in their reformation; see Hag 2:18, Hag 2:19.

I.Elijah sent Ahab to eat and drink, for joy that God had now accepted his works, and that rain was coming; see Ecc 9:7. Ahab had continued fasting all day, either religiously, it being a day of prayer, or for want of leisure, it being a day of great expectation; but now let him eat and rink for, though others perceive no sign of it, Elijah, by faith, hears the sound of abundance of rain, Kg1 18:41. God reveals his secrets to his servants the prophets; and yet, without a revelation, we may foresee that when man's judgments run down like a river God's mercy will. Rain is the river of God, Psa 65:9.

II.He himself retired to pray (for though God had promised rain, he must ask it, Zac 10:1), and to give thanks for God's answer by fire, now hoping for an answer by water. What he said we are not told; but, 1. He withdrew to a strange place, to the top of Carmel, which was very high and very private. Hence we read of those that hide themselves in the top of Carmel, Amo 9:3. There he would be alone. Those who are called to appear and act in public for God must yet find time to be private with him and keep up their converse with him in solitude. There he set himself, as it were, upon his watch-tower, like the prophet, Hab 2:1. 2. He put himself into a strange posture. He cast himself down on his knees upon the earth, in token of humility, reverence, and importunity, and put his face between his knees (that is, bowed his head so low that it touched his knees), thus abasing himself in the sense of his own meanness now that God had thus honoured him.

III.He ordered his servant to bring him notice as soon as he discerned a cloud arising out of the sea, the Mediterranean Sea, which he had a large prospect of from the top of Carmel. The sailors at this day call it Cape Carmel. Six times his servant goes to the point of the hill and sees nothing, brings no good news to his master; yet Elijah continues praying, will not be diverted so far as to go and see with his own eyes, but still sends his servant to see if he can discover any hopeful cloud, while he keeps his mind close and intent in prayer, and abides by it, as one that has taken up his father Jacob's resolution, I will not let thee go except thou bless me. Note, Though the answer of our fervent and believing supplications may not come quickly, yet we must continue instant in prayer, and not faint nor desist; for at the end it shall speak and not lie.

IV.A little cloud at length appeared, no bigger than a man's hand, which presently overspread the heavens and watered the earth, Kg1 18:44, Kg1 18:45. Great blessings often arise from small beginnings, and showers of plenty from a cloud of a span long. Let us therefore never despise the day of small things, but hope and wait for great things from it. This was not as a morning cloud, which passes away (though Israel's goodness was so), but one that produced a plentiful rain (Psa 68:9), and an earnest of more.

V.Elijah hereupon hastened Ahab home, and attended him himself. Ahab rode in his chariot, at ease and in state, Kg1 18:45. Elijah ran on foot before him. If Ahab had paid the respect to Elijah that he deserved he would have taken him into his chariot, as the eunuch did Philip, that he might honour him before the elders of Israel, and confer with him further about the reformation of the kingdom. But his corruptions got the better of his convictions, and he was glad to get clear of him, as Felix of Paul, when he dismissed him, and adjourned his conference with him to a more convenient season. But, since Ahab invites him not to ride with him, he will run before him (Kg1 18:46) as one of his footmen, that he may not seem to be lifted up with the great honour God had put upon him or to abate in his civil respect to his prince, though he reproved him faithfully. God's ministers should make it appear that, how great soever they look when they deliver God's message, yet they are far from affecting worldly grandeur: let them leave that to the kings of the earth.

Look toward the sea - From the top of Mount Carmel the Mediterranean Sea was full in view.

And it came to pass in the mean while,.... That the servant was gone with the message to Ahab, and Ahab was getting ready his chariot:

that the heaven was black with clouds and wind, and there was a great rain; which all sprung from the cloud like a man's hand; and so we are told (k), that sometimes a little cloud called the ox's eye is seen on a mount of the Cape of Good Hope, called Tafesbery, when the sky is most serene, and the sea quiet; which is at first scarce so big as a barley corn, and then as a walnut; and presently it extends itself over the whole surface of the mountain:

and Ahab rode, and went to Jezreel; as fast as he could.

(k) Scheuchzer. Physic. Sacra, vol. 3. p. 591.

Go up now, look toward the sea--From the place of worship there is a small eminence, which, on the west and northwest side, intercepts the view of the sea [STANLEY; VAN DE VELDE]. It can be ascended in a few minutes, and presents a wide prospect of the Mediterranean. Six times the servant went up, but the sky was clear--the sea tranquil. On the seventh he described the sign of approaching rain [Kg1 18:44].