Chapter CIII: Section LXVI: Then, when after his baptism he was permitted to enter the

church, over its main entrance he saw, on looking back, a mosaic of Christ enthroned, with the Virgin on one side and St. Mark on the other, in attitudes of adoration. Christ is represented as holding a book open upon his knee, on which is written: "I AM THE DOOR; BY ME IF ANY MAN ENTER IN, HE SHALL BE SAVED." On the red marble moulding which surrounds the mosaic is written: "I AM THE GATE OF LIFE; LET THOSE WHO ARE MINE, ENTER BY ME." Above, on the red marble fillet which forms the cornice of the west end of the church, is written, with reference to the figure of Christ below: "WHO HE WAS, AND FROM WHOM HE CAME, AND AT WHAT PRICE HE REDEEMED THEE, AND WHY HE MADE THEE, AND GAVE THEE ALL THINGS, DO THOU CONSIDER."

Now observe, this was not to be seen and read only by the catechumen when he first entered the church; every one who at any time entered, was supposed to look back and to read this writing; their daily entrance into the church was thus made a daily memorial of their first entrance into the spiritual Church; and we shall find that the rest of the book which was opened for them upon its walls continually led them in the same manner to regard the visible temple as in every part a type of the invisible Church of God.