Mater Dei Catholic Church is served by the Priestly Fraternity of Saint Peter with the approval and blessing of the Most Reverend Kevin J. Farrell, Bishop of the Diocese of Dallas. All Masses and Sacraments are performed in the Latin usus antiquior of the Roman Rite, in accordance with the Missal of Blessed John XXIII published in 1962, as expressed in the Motu Proprio Summorum Pontificum of His Holiness ,Pope Benedict XVI.