They also quoted from Josephus, in his book styled "De Bello Judico," in which the eminent Jewish writer says: "They say that all souls are incorruptible; but that the souls of good men are only removed into other bodies--but that the souls of bad men are subject to eternal punishment." They also quoted from Josephus, regarding the Jewish belief in Rebirth as evidenced by the recital of the instance in which, at the siege of the fortress of Jotapota, he sought the shelter of a cave in which were a number of soldiers, who discussed the advisability of committing suicide for the purpose of avoiding being taken prisoners by the Romans. Josephus remonstrated with them as follows: "Do ye not remember that all pure spirits who are in conformity with the divine dispensation live on in the loveliest of heavenly places, and in the course of time they are sent down to inhabit sinless bodies; but the souls of those who have committed self-destruction are doomed to a region in the darkness of the underworld?" Recent writers hold that this shows that he accepted the doctrine of Re-birth himself, and also as showing that it must have been familiar to the Jewish soldiery. There seems to be no doubt regarding the familiarity of the Jewish people of that time with the general teachings regarding Metempsychosis. Philo positively states the doctrine as forming part of the teachings of the Jewish Alexandrian school. And again the question asked Jesus regarding the "sin of the man born blind" shows how familiar the people were with the general doctrine. And so, the teachings of Jesus on that point did not need to be particularly emphasized to the common people, He reserving this instruction on the inner teachings regarding the details of Re-birth for his chosen disciples. But still the subject is mentioned in a number of places in the New Testament, as we shall see. Jesus stated positively that John the Baptist was "Elias," whose return had been predicted by Malachi (4:5). Jesus stated this twice, positively, i.e., "This is Elijah that is to come" (_Matt. 11:14_); and again, "But I say unto you that Elijah is come already, but they knew him not, but did unto him whatsoever they would.... Then understood the disciples that he spoke unto them of John the Baptist." (_Matt. 17:12-13._) The Mystics point out that Jesus saw clearly the fact that John was Elijah re-incarnated, although John had denied this fact, owing to his lack of memory of his past incarnation. Jesus the Master saw clearly that which John the Forerunner had failed to perceive concerning himself. The plainly perceptible characteristics of Elijah reappearing in John bear out the twice-repeated, positive assertion of the Master that John the Baptist was the re-incarnated Elijah.