In the book Tobias we have a detailed and important account of exorcism, and one, moreover, which throws considerable light upon the demonology of the time. Tobias, the son of Tobias, is sent under the guidance of the unknown Angel, S. Raphael, to Gabelus in Rages of Media, to obtain the ten talents of silver left in bond by his father. Tobias, whilst bathing in the Tigris is attacked by a monstrous fish, of which he is told by his Angel protector to reserve the heart, liver, and gall; the first two of these are to prevent the devil who had slain seven previous husbands of Sara, the beautiful daughter of Raguel, from attacking him. They arrive at the house of Raguel, and Tobias seeks the hand of Sara. She, however, is so beloved by the demon Asmodeus that seven men who had in turn married her were by him put to death the night of the nuptials, before consummation. Tobias, however, by exorcism, by the odour of the burning liver of the fish, and by the help of S. Raphael, routs Asmodeus, “Then the Angel Raphael took the Devil, and bound him in the desert of upper Egypt.” The story which must be accepted as fact-narrative was originally written during the Babylonian exile in the early portion of the seventh century, B.C. It plainly shows that demons were considered to be capable of sexual love, such as was the love of the sons of God for the daughters of men recorded in Genesis (vi. 2). One may compare the stories of the Jinns in Arabian lore. Asmodeus is perhaps to be identified with the Persian _Aëshma daêva_, who in the _Avesta_ is next to Angromainyus, the chief of the evil spirits. The introduction of Tobias’s dog should be remarked. The dog accompanies his master on the journey and when they return home “the dog, which had been with them in the way, ran before, and coming as if he had brought the news, shewed his joy by his fawning and wagging his tail.” Among the Persians a certain power over evil spirits was justly assigned to the faithful dog. The New Testament evidence for the reality of magic and divination is such that cannot be disregarded by any who accept the Christian revelation. In the Gospels we continually meet with possession by devils; the miracle wrought in the country of the Gerasenes (Gergesenes) (S. Matthew viii. 28-34), the dumb man possessed by a devil (S. Matthew ix. 32-34), the healing of the lunatic boy who was obsessed (S. Matthew xvii. 14-21), the exorcism of the unclean spirit (S. Mark i. 23-27), the casting out of devils whom Christ suffered not to speak (S. Mark i. 32-34), the exorcism in the name of Jesus (S. Mark ix. 38), the demons who fled our Lord’s presence crying out “Thou art Christ, the son of God” (S. Luke iv. 41), the healing of those vexed with unclean spirits (S. Luke vi. 18), and many instances more.