Petra’s main church is the second church in Petra, after converting the urn tomb to the Church in 446, made up of the church building with the corridors of length (28 m) and view (17 m), in addition to the yard, the Tower of the Bank and the rooms’ side of the north and east. The church floor is characterized with mosaics paved in the north and south galleries as well as marble in the east hallway and mosaic imagery of geometric, animal shapes and graphics representing the four seasons, the gods of sea and land, with three inscribed apses and corresponding three entrances in the western wall. Some parts of the walls are preserved up to 3m. It was probably built around the end of the fifth century AD, and destroyed by a fire and/ or an earthquake in the middle of the sixth century AS. Much of the building material such the capitals, door jambs and reliefs were reused from earlier monuments in Petra.
The Preserved floor mosaics in the church attest to its significance. Both side aisles are paved with mosaic floors. In the northern aisle, three parallel rows of roundels depict various animals, birds, vessels and human forms. The eastern part of the southern aisle has two rows of roundels containing depictions of animals, while the remaining area presents motifs in three parallel rows of geometric panels. While the remaining area Presents motifs in three parallel rows of geometric panels. The centrally situated panels contain anthropomorphist personifications of the Four Seasons, Ocean, Earth and wisdom. These are flanked by representations of animals and fish.
In addition to the floor mosaics, many fragments of wall mosaic were found, some with human representations and with gilded tesserae. These as well as the fragments of window pane glass attest to a magnificent interior.
The Petra church also produced the most complete examples of marble church furnishing found in the region, some of which has been restored for display at the site.