A fellow Catholic asked, why do some people say that Enoch and Elijah will come back alive in their bodies during the time of the Antichrist?

My answer: Because in the book of Revelation there are verses related to the two witnesses that will appear and oppose the beast, performing wonders and signs, and who will be killed by it (Rev 11). Some interpret this as referring to Enoch and Elijah who according to the Bible did not die. There is also the vision of St Hildegard von Bingen (Scivias Book 3 Vision 11) who says Enoch and Elijah are kept in a hidden place by God and will come back in the body after the Antichrist appears to oppose him and preach/teach/perform signs everywhere the deception has taken hold. In her vision, they are also killed by the Antichrist.