![Gerasa Isaiah Church Vincent A. Clark, “The Church of Bishop Isaiah at Jerash,” Jerash Archaeological Project, 1981-1983, no. I (1986): 306.](https://northeastinsulaeproject.org/wp-content/uploads/2023/08/Gerasa-Isaiah-Church.png)
Summary information
GPS coordinates: 32.28285, 35.89192
Structure is visible in Google maps.
The church was constructed as a basilica, with a nave and side aisles, terminating at their eastern ends in internal apses. The nave was separated from the arcades of the side aisles by colonnades. These columns carried arches, the voussoirs of which sprang directly from the capitals of the columns. Each colonnade consisted of five columns, the bases of which are approximately 3. 3 m apart. The north aisle is approximately 3. 9m wide, while the south aisle is 4.15m. The nave is exactly double the width of the south aisle. A stylobate beneath the floor level provided foundational support for the columns.
A portico extended across the full width of the west side, formed by a stylobate with eight columns, four to either side of the central axis. This portico was 3. 75m wide. Unfortunately, the full plan could not be revealed and no indication of the plan of the ends of the portico, or of what lay beyond it to the west, was found.
The original design provided for nine doors opening into the church. Three opened into nave and side aisles from the western portico. Of these the aisle doors are 1. 7m wide and the nave door 2.4m. Three doors were designed for each of the side aisles, two opening into each aisle and one into each of the north and south chancels. The south chancel door was blocked during the constructional phase and was never used. These doors all measure approximately 1. 7m in width, except the western-most door in the south wall, which is only 1.1 m wide. This latter may have opened into a prothesis chapel or diakonikon, as yet unexcavated, outside the domus to the south.
The chancel area enclosed one bay of the side aisles and about 1 ¼ bays of the nave. A single step, carrying chancel posts and a plain chancel screen, enclosed the chancel and choir. Colonnettes, from which curtains were probably suspended, were supported by the chancel posts.
All three apses are inscribed, the eastern wall of the church presenting a plain exterior. The curve of the central apse abuts the exterior wall. Behind the south apse, in the space between it and the exterior wall, is a small room, measuring 5.3m by 1.2m, opening to the south. It seems likely that a similar room existed behind the north apse, although this cannot be verified.
The central apse is raised one step above the level of the choir. This step projects approximately 1. 3m beyond the apse chord and extends 1.3 m to either side of the apse itself. A synthronon extended around the curve of the apse wall, consisting of two stages, the lower being 0.22m wide and the upper 0.77m. Only the front 0.4m of the upper stage was of masonry. Behind this, between the masonry and the apse wall, the space was filled with rubble and red clay. This bench was plastered and painted to resemble red marble. At the rear of the apse was a raised, projecting throne, now largely destroyed. No certain trace of an altar was found, although an arrangement of marble slabs, raised slightly above the surrounding floor level, measuring 1.9m by 0.94m, in the centre of the apse may mark its position. A sounding made beneath the apse floor revealed no trace of a reliquary nor of any earlier phase here.
The side apses are identical, the south one being the better preserved, standing to four courses. These apses appear to have been perfectly plain.
The eastern and northern sides of the church have been built directly on the top of the walls of an earlier structure with similar dimensions (an earlier church?).
The chancel screens of the side aisles extended across the full width of the aisle, with posts at the ends only. The northern screen was found in situ, although broken and tilted over to the west. Its northern end was found still set into the groove in the side of the chancel post. The screen itself was completely plain, made in two pieces, one of fine local limestone and the other of a coarse grey marble. These two pieces simply abutted one another, with no apparent fastening or support. The screen was 0.8m high. Part of the south chancel screen and pieces of the central one were also found. They, too, are plain.
The eastern and northern sides of the church have been built directly on the top of the walls of an earlier structure with similar dimensions (an earlier church?).
Vincent A. Clark, “The Church of Bishop Isaiah at Jerash,” Jerash Archaeological Project, 1981-1983, no. I (1986): 303-305
The ambo was located at the south (epistle) side of the choir and was approached through a gap in the chancel screen. The arrangement of the chancel screen and posts has clearly been altered in order to accommodate the new feature. A chancel post, previously placed directly in front of the ambo step, was removed and replaced by one to either side of the ambo step, leaving an opening about o. 7m wide through the screen. Two steps gave access to the platform of the ambo, which was formed by a limestone slab, which projected to the west. This was supported by three colonnettes, the bases of which were set into the floor. The positioning of the bases resulted in the destruction of the original mosaic floor here, which was replaced by large white tesserae. The ambo was surrounded by a decorative white limestone screen, the fragments of which were found scattered about in this area.
Vincent A. Clark, “The Church of Bishop Isaiah at Jerash,” Jerash Archaeological Project, 1981-1983, no. I (1986): 313.
The church many have been constructed on the walls of an earlier church of identical size. Some time after the completion of the original structure a number of alterations were made to the plan and to the mosaics. Foremost among these were the iconoclasm practised on the mosaic, the addition of an ambo and the blocking of several doorways. The removal of nearly all human and animal depictions from the nave and choir mosaics probably took place during the reign of the Umayyad Yazid II (720-724AD), at which time much damage seems to have been done to the Christian mosaics at Jerash.
The ambo, or pulpit, is a later addition, although its date is unknown. It may precede the period of iconoclasm, as the scene of Konstantinos hunting the fleeing animal (above) appears to continue intact beneath the ambo.
The church seems to have been abandoned in the middle of the 8th century, probably as the result of an earthquake.
Vincent A. Clark, “The Church of Bishop Isaiah at Jerash,” Jerash Archaeological Project, 1981-1983, no. I (1986): 313.
Bowsher, JMC. “The Church Inscriptions.” Jerash Archaeological Project I. Amman: Department of Antiquities of Jordan, 1986, 319–22.
Clark, Vincent A. “The Church of Bishop Isaiah at Jerash.” Jerash Archaeological Project, 1981-1983, no. I (1986): 303–41.
Characteristics
- Tri-apsidal usually inscribed
- Τ-shaped
or bar-shapedchancel
- Τ-shaped
- Synthronon
- Ambo on the south
- The floor of the nave, side aisles and chancel area, but excluding the apses, was completely paved with mosaics…. The nave mosaic was originally very fine. It measures 14m by 7m approximately. The border is an inhabited acanthus rinceau 0.62m wide, the loops formed by the scrolls enclosing pictures of animals, birds, fruit and baskets of fruit and flowers. Of these only a bird (pheasant?), a dog, two ducks, a pomegranate and several fragmentary baskets were preserved. At the eastern end of the nave, within the central portion of the acanthus border, is a tabula ansata containing a seven line mosaic inscription, now almost totally destroyed. To the east of the eastern border, between it and the chancel step, were several human portraits and inscriptions, now largely destroyed. These probably represent the benefactors of the church.
- The north aisle was covered by a single mosaic panel of geometric design. It is of very poor execution…. The south aisle is likewise covered by a single mosaic panel, of much finer quality than that of the north aisle.
- The floors of the three apses were covered with stone paving. Within the central apse this was largely destroyed, although sufficient remained to enable a hypothetical reconstruction. Tiles of white limestone and marble, 0.14m square, were laid in rows, separated by rows of triangular tiles of red sandstone and dark grey slate.
Vincent A. Clark, “The Church of Bishop Isaiah at Jerash,” Jerash Archaeological Project, 1981-1983, no. I (1986): 307-11.
- Multiple entrances on all sides
- Attached north room(s)
- Attached south room (s)
- No Baptistry
Constantinopolitan
- Protruding apse
- Entrances from the east on either side of the apse
- Π-shaped chancel
- Multiple entrances on all sides
- Ambo on the south
- Exterior chapel to the north
Syrian
- Π-shaped chancel
- Inscribed mono-apsidal
- Rooms on both sides of the apse
- West entrance
- Ambo on south
- Baptistry in room south of the apse or in the south aisle
- Separate south chapel
- South entrances from side rooms/chapels
Roman
- Τ-shaped or bar-shaped chancel
- Tri-apsidal usually inscribed
- Altars in the side apses
- Relics and Reliquaries
- Ambo to the north
- Baptistry outside off the atrium or the north aisle
- Marble furnishings (high status imperial association) and imported fine wares
- Decorative elements on chancel screens [specify]
- Separate north chapel
Syrian to Roman conversion
- Τ-shaped or bar-shaped chancel replacing Π-shaped chancel
- Side apses inserted into rooms adjacent to the main apse
- Separate north chapel (suppressed south chapel)
- Liturgical furniture with decorative motifs like those at St. Clemente in Rome
Classification
Roman
- Τ-shaped
or bar-shapedchancel - Tri-apsidal
usuallyinscribed Altars in the side apsesRelics and Reliquaries- Ambo to the
northsouth Baptistry outside off the atrium or the north aisleMarble furnishings (high status imperial association) and imported fine waresDecorative elements on chancel screens [specify]Separate north chapel
The Archaeology of Liturgy Project reflects research conducted at the W.F. Albright Institute of Archaeological Research in Jerusalem during 2023.