Are there any among the vanities of the Gentiles that can cause rain?
Impotence of idols
Remember it was a time of dearth. The question turned upon the presence of grass; there was no grass, and therefore the hind calved in the field and forsook its own offspring, that it might abate its own hunger, seeking grass in some far-away place. Natural instincts were subdued and overcome, and the helpless offspring was left in helplessness, that the poor dying mother, hunger smitten, might find a mouthful of green herbage somewhere. And the ground was dust; the ploughmen were ashamed, they resorted to that last sign of Oriental desperation and grief, to cover their heads, because there was no rain, no grass; and now the prophet asks, “Are there any among the vanities of the Gentiles than can cause rain?” What can the idols do? If they can give rain, let them give it now. Can the heavens themselves give showers--the blue heavens that look so kind--can they of themselves, and as it were by their own motion, pour a baptism of water upon the earth? No. This is the act of the living God, the providence of the redeeming Father, the miracle of love. Thus we are driven in various ways to pray. You never know what a man is religiously, until he has been well tried, hungry a long time, and had no water to drink, until his tongue is as a burning sting in his mouth, until it hardens like metal, and if he can then move his lips you may find the coward trying to pray. (J. Parker, D. D.)
Rainmakers among the heathen
In Burmah the inhabitants have a novel form of the sport that elsewhere is commonly called a tug-of-war. In the Burmese game there is a rain party and a drought party, who pull one against the other, the victory of either party being considered to have immediate results as regards the weather. The drought party, however, obtain few victories, for the kind of weather they represent is commonly not so much desired as rain. In the face, therefore, of a strong public opinion the rain party are nearly always allowed to win, the palpable “roping,” in the popular notion, being generally followed by a fertilising downpour.
Prayer is the most potent means of obtaining rain, as shown in the case of Elijah..