The Roman Catholic Church issued its first, modern, one-volume Lectionary--a book of biblical texts assigned for every day of the year--in 1970 in response to the Second Vatican Council's call for a greater fare of Scripture during Mass. By the time the Lectionary was revised and published between 1998 and 2002, it had grown to four volumes. Because of the revision, many weekday celebrations of saints were assigned texts that had not been so in the...