Canon XXIV. No one of the priesthood, from presbyters to deacons, and so on in the ecclesiastical order to subdeacons, readers, singers, exorcists, door-keepers, or any of the class of the Ascetics, ought to enter a tavern. Notes. Ancient Epitome of Canon XXIV. No clergyman should enter a tavern. Compare this with Apostolic Canon LIV., which contains exceptions not here specified. This canon is contained in the Corpus Juris Canonici , Gratian’s Decretum , Pars I., Dist. xliv. c. ij.