Numbers 23:3

And Balaam said unto Balak, Stand by thy burnt offering, and I will go, the king was to remain at the altar, while Balaam went forth to seek good auguries, or omens, in some signs or portents of nature, for in that way many of the heathen diviners pretended to tell the future; peradventure the Lord will come to meet me; and whatsoever He showeth me I will tell thee. And he went to an high place, to an empty, solitary peak of the hill, from where he would have an unobstructed view in every direction, for he hoped to receive or discover in the phenomena of nature a Revelation from Jehovah.