The altar (in Roman style), in the choir, is made of white marble. The tabernacle comes from the Cistercian Cambron Abbey (Hainaut) and was placed in the church in 1789. High above the altar, in the apse, are bas-reliefs in stucco or painted blue stone depicting The Nativity, The Last Supper and The Entombment. To the left of the altar is a white statue representing The Old Testament, and to the right The New Testament. These works were all designed by the sculptor Gilles-Lambert Godecharle. At the division between the side altar and the main altar, on the left, is another white marble statue by Adrien Joseph Anrion, representing Saint Peter, and on the right is a statue by the same sculptor depicting Religion.
