Vol.4, page 436-8
The old ѕуηαgσgυє, which was now erected into a church...
was less hemmed in by buildings than the house of the Last Supper, whose court on one side adjoined a row of houses. I saw the Apostles and disciples, after the Feast of Pentecost, working continually at the interior arrangements of the Church. Peter, John, Andrew, and James the Less took turns in preaching at three different places around the pool and on the third terrace, upon which was Peter's chair of instruction. A great many of the Faithful were always in attendance, and I often saw them prostrate on the ground in ardent prayer. Words cannot say what activity reigned throughout the whole Community at all times. Weaving, plaiting, and every kind of work for the new church and for the poor were carried on.
The church was a large, long, quadrangular edifice with real windows high up in the walls. By means of steps in the wall, one could mount up on the outside to the flat roof, which was surrounded by a gallery. On it were three little cupolas that could be opened like draught holes. The inside, on the two lengths and one of the ends, was furnished with stone benches for the congregation, and the building was in all respects turned into a church. At one end was the altar, at such a distance from the wall that sufficient space was left behind for a sacristy, which was formed by wickerwork screens that reached from the altar to the side walls. These screens were covered in front with fine white stuff, on the other side with coarser. The altar was portable. It consisted of a long, four-cornered piece of wood covered, and resting on three steps. On either side, however, there was only a single step, which could be opened to allow carpets to be laid in, and the back of the altar likewise opened to receive the vestments. On it was a bell-shaped tabernacle with a fine white cover closed in front by two little metallic shields. There was a knob on top, by which it could be lifted. On either side of the tabernacle were branched lamps with burning wicks. The whole altar was enclosed by a white curtain with colored stripes, which was supported by a canopy. It hung down only a little below the top of the altar. The canopy itself formed a niche and depended by five straps from the hand of a figure embroidered by the holy women. It represented an old man in the robes of a High Priest, a triangular halo around the head. It stood in a bowed posture, as if looking down through an opening in the cover, one hand outstretched as if giving a blessing, the other grasping the five straps of the canopy. The curtain was in one piece at the back, but in front it could be drawn to either side or closed with metal clasps.
From the raised altar down to the pulpit was a space set aside apart for the choir ceremonies of the Apostles and disciples. After the holy Resurrection I saw them assembled every day in the Last Supper room for prayer in choir. The Apostles stood along either side of the hall facing the Holy of Holies, while the disciples occupied the vestibule thrown open for the occasion. They sang and prayed, choir and choir. I saw Nicodemus, Joseph of Arimathea, and Obed present also. The Blessed Virgin usually stood under the middle entrance of the vestibule, her face turned toward the Holy of Holies. She wore the long white mantle and was veiled. Jesus had Himself arranged the choral service, and about the time of the eating of the fish at Tiberias, or perhaps during the meal itself, explained to the Apostles the mysterious signification of this religious ceremony. He had repeated the same on the occasion of Thomas' touching His sacred wounds and giving testimony of his faith. Once also I saw that Jesus appeared to them while they were chanting in choir before daybreak. They daily assembled twice, in the evening till after dark, and before dawn in the morning. Below the pulpit the congregation was cut off from the choir by a grating, through many places of which the Blessed Sacrament could be reached to them. It was almost like the grating seen in cloisters. On either side of the pulpit there were small doors by which the Apostles and disciples could enter the choir. The congregation was arranged in a certain order, the women separate from the men.