1 Kings 18:33

Fill four barrels — or pitchers. The filling of these at the time of drought has naturally excited speculation. A ready surmise, by those unacquainted with the country, was that the water was taken from the sea flowing at the base of Carmel; but a glance at the position and the height of the mountain puts this not unnatural surmise out of the question, as difficult, if not impossible. Examination of the locality has discovered a perennial spring in the neighbourhood of the traditional scene of the sacrifice, which is never known to fail in the severest drought. From this, no doubt (as indeed Josephus expressly says), the water was drawn, with, of course, the object of precluding all idea of fraud or contrivance, and bringing out strikingly the consuming fierceness of the fire from heaven, so emphatically described in 1 Kings 18:38.