Tell me all of this, you Muses who have your homes on Olympus, from the beginning, tell who first of them (the gods) came-to-be.

First of all Chaos came-to-be; but then afterwards Broad-breasted earth, a secure dwelling place forever for all (the immortals who hold the peaks of snowy Olympus, and misty Tartara in the depths under the wide-wayed grounds and Eros who, handsomest among the deathless gods a looser of limbs, in all the gods and in all human beings overpowers in their breasts their intelligence and careful planning. And from Chaos came-to-be both Erebos and dark night, and from night, in turn, came-to-be both Aither and day, whom she conceived and bore after joining in love with Erebos. But earth first begat, as an equal to herself, starry sky, so that he might cover her on all sides, in order to be a secure dwelling place forever for all the blessed gods, and she begat the tall mountains, pleasing haunts of the goddess-nymphs who make their homes in the forested hills, and also she bore the barren main with its raging swell, the sea, all without any sweet act of love; but then next, having lain with sky, she bore deep-swirling ocean.

Hesiod, “Theogony”

From:

Drew A. Hyland;John Panteleimon Manoussakis. Heidegger and the Greeks: Interpretive Essays (Studies in Continental Thought) (p. 9). Kindle Edition.