First Apology 18

For look at the end of each of the kings who have lived, that they died the death common to all; which, if it led to insensibility, would be a godsend to all the wicked. But since sensation remains for all who have lived, and eternal punishment is laid up, do not neglect to be persuaded and to believe that these things are true. For necromancy, and the divinations by means of uncorrupted boys, and the summoning of human souls, and those whom the magicians call dream-senders and familiar spirits, and all that is done by those skilled in these things, should persuade you that souls are in a state of sensation even after death; and so should those who are seized and thrown about by the souls of the dead, whom all call demon-possessed and mad; and what you call the oracles of Amphilochus and Dodona and Pytho, and all others of the kind; and the teachings of the writers Empedocles and Pythagoras, Plato and Socrates, and the pit in Homer and the descent of Odysseus to see these things, and the teachings of those who have said the same. Accept us at least as you accept them, since we believe in God not less than they but more, we who expect to receive back our own bodies, though they are dead and cast into the earth, saying that nothing is impossible with God.