The Internal Arrangement.

The interior of a church is divided into several compartments: 1) the Sanctuary, where divine service is performed; 2) the Chapel of the Prothesis, containing the Table of Oblations, for the reception and preparation of the sacred Gifts; 3) the Vestry, for the keeping of sacred vestments; 4) the Body of the Church, for the worshippers; 5) the Vestibule and Porch, for the catechumens.