The cathedra, Latin for “seat,” signifies the authority of the bishop. The word “cathedral” is derived from this and represents where the bishop’s seat is located. Hence, the Cathedral of Saint Thomas More is the “seat of the Diocese of Arlington.” The prominence of the cathedra highlights the ministerial aspect of the episcopacy and its authority to teach, govern, and sanctify. It is similarly crafted of the same precious Azul Macaubasa and Bianco Carrara marble as the sanctuary.