Luke 9:8

Risen from the dead. Herod was perplexed and in suspense about the report, that it was John [the Baptist] that was risen from the dead.... From this it appears, that some of the Jews, and Herod himself, believed in some kind of metempsychosis, or transmigration of souls. Josephus says, (Antiq. lib. xviii, chap. 2.) that the Pharisees believed the soul to be immortal; and after death, to depart to some subterraneous places, where they received the recompense of good, or evil, according to their actions. There the souls of the wicked remain for ever, without the power of departing thence. The souls of the good sometimes returned, and entered other bodies. Herod probably thought that the soul of John the Baptist was united to that of Christ, in the same body, and was thence enabled to perform new and more extraordinary functions. Such were the reveries of some of the Rabbins; who, as St. Jerome remarks, abused the passages of the gospel we are now explaining, in support of this Pythagorean doctrine. Most of the Jews believed the true doctrine of the resurrection, viz. that of the body; which must one day be renewed to life by the same soul which now animates it: and this is the doctrine of faith and of the Church, which she teaches you from both the Old and New Testament, instead of that transmigration of souls, which has no foundation or appearance of truth. It is probable that this error was widely diffused among the Jews, in our Saviour's time. It was a doctrine suited to the taste of the Orientals. Some think they can see traces of it in the history of Elias. That prophet being taken away, and the Jews seeing Eliseus perform the same miracles, said, that the spirit of Elias had rested on him. (Calmet)