In 553 the Emperor Justinian forbade the spread of the Talmudic books throughout the Roman Empire.(15) In the 13th century "Popes Gregory IX and Innocent IV condemned the books of the Talmud as containing every kind of vileness and blasphemy against Christian truth, and ordered them to be burned because they spread many horrible heresies."(16)
(15) cf. Authenticae Constitutiones, Novella 146.
(16) cf. Corp. iuris
can. VII Decretal, lib. V, Tit.IV, cap.1.
Later, they were condemned by many other Roman Pontiffs—Julius III, Paul IV, Pius IV, Pius V, Gregory XIII, Clement VIII, Alexander
VII, Benedict XIV, and by others who issued new editions of the Index of Forbidden Books according to the orders of the Fathers of the Council of Trent, and even in our own time.(17)