Pope John XXIII, who succeeded Pius XII in 1958, added some new feasts and made some other changes to the liturgical calendar, as well as amending some of the rubrics. In his 1962 edition of the Missal, he also deleted the word ""perfidis"" (Latin: "faithless") from the Good Friday prayer for the Jews, and added the name of St. Joseph to the Canon of the Mass. The second change was particularly significant, as many had considered the text of the Canon to be practically untouchable.