The rubrics regarding the anticipation of the 23rd Sunday after Pentecost on the previous Saturday have been abrogated by the General Decree De rubricis ad simpliciorem formam redigendis (Tit. II., num. 6) promulgated by the Congregation of Sacred Rites by authority of Pope Pius XII (23 March 1955; A. A. S., vol. xlvii., pp. 218 sqq.). However, since numerous Catholics attend Masses offered by clerics who do not obey this General Decree promulgated by the Apostolic See, the commentary authored by the late Cardinal Schuster for the 23rd Sunday after Pentecost is given for the sake of those Catholics who plan to attend Saturday Mass at such Chapels or Mass centers.