This practice in early times was almost universal; and every [725]mountain was esteemed holy. The people, who prosecuted this method of worship, enjoyed a soothing infatuation, which flattered the gloom of superstition. The eminences to which they retired were lonely, and silent; and seemed to be happily circumstanced for contemplation and prayer. They, who frequented them, were raised above the lower world; and fancied that they were brought into the vicinity of the powers of the air, and of the Deity who resided in the higher regions. But the chief excellence for which they were frequented, was the Omphi, expressed ομφη by the Greeks, and interpreted [726]Θεια κληδων, vox divina, being esteemed a particular revelation from heaven. In short, they were looked upon as the peculiar places where God delivered his oracles. Hermæus in Plutarch expresses this term ομφις, omphis; and says, that it was the name of an Egyptian Deity: and he interprets it, I know not for what reason, [727]ευεργετης. The word truly rendered was Omphi or Amphi, the oracle of Ham; who, according to the Egyptian theology, was the same as the Sun, or Osiris. He was likewise revered as the chief Deity by the Chaldeans; and by most nations in the east. He was styled both Ham, and Cham: and his oracles both Omphi and Ompi. In consequence of this, the mountains where they were supposed to be delivered, came to be denominated Har-al-Ompi; which al-ompi by the Greeks was changed to Ολυμπος, Olympus; and the mountain was called ορος Ολυμπου. There were many of this name. The Scholiast upon Apollonius reckons up [728]six: but there were certainly more, besides a variety of places styled upon the same account [729]Olympian. They were all looked upon to be prophetic; and supposed to be the residence of the chief Deity, under whatever denomination he was specified, which was generally the God of light. For these oracles no place was of more repute than the hill at Delphi, called Omphi-El, or the oracle of the Sun. But the Greeks, who changed Al-omphi to Olympus, perverted these terms in a manner still more strange: for finding them somewhat similar in sound to a word in their own language, their caprice immediately led them to think of ομφαλος, a navel, which they substituted for the original word. This they did uniformly in all parts of the world; and always invented some story to countenance their mistake. Hence, whenever we meet with an idle account of a navel, we may be pretty sure that there is some allusion to an oracle. In respect to Delphi, they presumed that it was the umbilicus, or centre of the whole earth. The poets gave into this notion without any difficulty; Sophocles calls it [730]μεσομφαλα Γης μαντεια: and Euripides avers that it was the precise centre of the earth: [731]Οντως μεσον ομφαλον γας Φοιβου κατεχει δομος.