December 1: Blessed John of Vercelli, C., O.P., Commemoration

Today, in the 1962 Dominican Rite Calendar, we make a commemoration of Blessed John of Vercelli, 6^th Master General of the Order.  Since it is the first Sunday of Advent, his commemoration is not made.

Although Humbert de Romans is generally regarded as the “father” of the Dominican Rite of Mass and Office, it was Blessed John of Vercelli who, in the year 1267, petitioned Pope Clement IV to formally approve the Dominican Office.  Pope Clement IV did so in the Bull "Consurgit in nobis", issued on July 7, 1267.  He is also the founder of the Holy Name Society.

The Ferial Office During Advent

In the Dominican Breviary, the ferial office in Advent draws heavily from the Book of Jeremiah for the Little Chapter (Lauds, Terce, Sext, and Vespers). The versicle before Lauds is from Isaiah 6. Each one builds upon the Old Testament Prophets' anticipation of the coming of the Messiah, just as the Church now does during Advent.

The ferial days in Advent have the rank of III Class, until December 17.  During these days, when a III Class feast occurs in the Proper of the Saints, a commemoration is made of the ferial day at Lauds and Vespers.  From December 17 through December 23, the ferial days have the rank of II Class.  During this period, when a III Class feast occurs, the ferial office is prayed and a commemoration of the III Class feast is made at Lauds and Vespers.  The preces are prayed on all of these ferial days.