Hesiod, the Homeric Hymns and Homerica/Hymn XV (To Heracles)
XV
TO HERACLES THE LION-HEARTED
I will sing of Heracles, the son of Zeus and much the mightiest of men on earth. Alcmena bare him in Thebes, the city of lovely dances, when the dark-clouded Son of Cronos had lain with her. Once he used to wander over unmeasured tracts of land and sea at the bidding of King Eurystheus, and himself did many deeds of violence and endured many; but now he lives happily in the glorious home of snowy Olympus, and has neat-ankled Hebe for his wife.
Hail, lord, son of Zeus! Give me success and prosperity.