The Birth of Heracles
But the father of men and gods was forming another scheme in his heart, to beget one to defend against destruction gods and men who eat bread. So he arose from Olympus by night pondering guile in the deep of his heart, and yearned for the love of the well-girded woman….So in one night Zeus shared the bed and love of the neat-ankled daughter of Electyron and fulfilled his desire; and in the same night Amphitryon, gatherer of the people, the glorious hero, came to his house when he had ended his great task. … And as a man who has escaped joyfully from misery, whether of sore disease or cruel bondage, so then did Amphitryon, when he had wound up all his heavy task, come glad and welcome to his home. And all night long he lay with his modest wife, delighting in the gifts of golden Aphrodite. And she, being subject in love to a god and to a man exceeding goodly, brought forth twin sons in seven-gated Thebe. Though they were brothers, these were not of one spirit; for one was weaker but the other a far better man, one terrible and strong, the mighty Heracles. Him she bare through the embrace of the son of Cronos lord of dark clouds and the other, Iphiclus, of Amphitryon the spear-wielder.