Chapter XXII. Communion Under One Kind. 291 But above all, as the Church in the fifth century, through her chief Pastor, Gelasius, enforced the use of the cup to expose and reprobate the error of the Manichees, who imagined that the use of wine was sinful; so in the fifteenth century she withdrew the cup to condemn the novelties of the Calixtines, who taught that the consecrated wine was necessary for a valid communion. Should circumstances ever justify or demand a change from the present discipline the Church will not hesitate to restore the cup to the laity. [307]