Hesiod, The Homeric Hymns, and Homerica
Page: 45(ll. 507-543) Now Iapetus took to wife the neat-ankled mad Clymene, daughter of Ocean, and went up with her into one bed. And she bare him a stout-hearted son, Atlas: also she bare very glorious Menoetius and clever Prometheus, full of various wiles, and scatter-brained Epimetheus who from the first was a mischief to men who eat bread; for it was he who first took of Zeus the woman, the maiden whom he had formed. But Menoetius was outrageous, and far-seeing Zeus struck him with a lurid thunderbolt and sent him down to Erebus because of his mad presumption and exceeding pride. And Atlas through hard constraint upholds the wide heaven with unwearying head and arms, standing at the borders of the earth before the clear-voiced Hesperides; for this lot wise Zeus assigned to him. And ready-witted Prometheus he bound with inextricable bonds, cruel chains, and drove a shaft through his middle, and set on him a long-winged eagle, which used to eat his immortal liver; but by night the liver grew as much again everyway as the long-winged bird devoured in the whole day. That bird Heracles, the valiant son of shapely-ankled Alcmene, slew; and delivered the son of Iapetus from the cruel plague, and released him from his affliction—not without the will of Olympian Zeus who reigns on high, that the glory of Heracles the Theban-born might be yet greater than it was before over the plenteous earth. This, then, he regarded, and honoured his famous son; though he was angry, he ceased from the wrath which he had before because Prometheus matched himself in wit with the almighty son of Cronos. For when the gods and mortal men had a dispute at Mecone, even then Prometheus was forward to cut up a great ox and set portions before them, trying to befool the mind of Zeus. Before the rest he set flesh and inner parts thick with fat upon the hide, covering them with an ox paunch; but for Zeus he put the white bones dressed up with cunning art and covered with shining fat. Then the father of men and of gods said to him:
(ll. 543-544) 'Son of Iapetus, most glorious of all lords, good sir, how unfairly you have divided the portions!'
(ll. 548-558) 'Zeus, most glorious and greatest of the eternal gods, take which ever of these portions your heart within you bids.' So he said, thinking trickery. But Zeus, whose wisdom is everlasting, saw and failed not to perceive the trick, and in his heart he thought mischief against mortal men which also was to be fulfilled. With both hands he took up the white fat and was angry at heart, and wrath came to his spirit when he saw the white ox-bones craftily tricked out: and because of this the tribes of men upon earth burn white bones to the deathless gods upon fragrant altars. But Zeus who drives the clouds was greatly vexed and said to him: