In the Icelandic Prose Edda is the following dialogue:
"Who is the first or eldest of the Gods?
"In our language he is called ALFADIR (All-Father, or the Father of
All); but in the old Asgard he had twelve names.
"Where is this God? What is his power? and what hath he done to display his glory?
"He liveth from all ages, he governeth all realms, and swayeth all things both great and small.
"He hath formed Heaven and earth, and the air, and all things thereunto belonging.
"He hath made man and given him a soul which shall live and never perish, though the body shall have mouldered away or have been burnt to ashes. And all that are righteous shall dwell with him in the place called Gimli or Vingolf; but the wicked shall go to Hel and thence to Niflhel which is below, in the ninth world."
Almost every heathen nation, so far as we have any knowledge of their mythology, believed in one Supreme Overruling God, whose name it was not lawful to utter.
"When we ascend", says MÜLLER, "to the most distant heights of Greek history, the idea of God as the Supreme Being stands before us as a simple fact. Next to this adoration of One God, the Father of Heaven, the Father of men, we find in Greece a Worship of Nature." The original Ζεύς was the God or Gods, called by the Greeks the Son of Time, meaning that there was no God before Him, but He was Eternal. "Zeus," says the Orphic line, "is the Beginning, Zeus the Middle; out of Zeus all things have been made". And the Peleides of Dodona said, "Zeus was, Zeus is, Zeus will be; O great Zeus!" Ζεύς νή, Ζεύς έστίν, Ζεύς ἐσσεται ώ μεγάλη Ζεύ: and he was Ζεύς, κύδιστος, μέγιστος, Ζεus, Best and Greatest.
The Parsees, retaining the old religion taught by Zaradisht, say in their catechism: "We believe in only one God, and do not believe in any beside Him; Who created the Heavens, the Earth the Angels…. Our God has neither face nor form, color nor shape, nor fixed place. There is no other like Him, nor can our mind comprehend Him."