“On account of those, therefore, who by neglect of their own salvation please the evil one, and those who by study of their own profit seek to please the good One, ten things have been prescribed as a test to this present age, according to the number of the ten plagues which were brought upon Egypt. For when Moses, according to the commandment of God, demanded of Pharaoh that he should let the people go, and in token of his heavenly commission showed signs, his rod being thrown upon the ground was turned into a serpent. 703 And when Pharaoh could not by these means be brought to consent, as having freedom of will, again the magicians seemed to do similar signs, by permission of God, that the purpose of the king might be proved from the freedom of his will, whether he would rather believe the signs wrought by Moses, who was sent by God, or those which the magicians rather seemed to work than actually wrought. For truly he ought to have understood from their very name that they were not workers of truth, because they were not called messengers of God, but magicians, as the tradition also intimates. Moreover, they seemed to maintain the contest up to a certain point, and afterwards they confessed of themselves, and yielded to their superior. 704 Therefore the last plague is inflicted, 705 the dep. 129 struction of the first-born, and then Moses is commanded to consecrate the people by the sprinkling of blood; and so, gifts being presented, with much entreaty he is asked to depart with the people.