A romantic air has been thrown over these burial chapels by the notion that they were the places of worship used by the Christians in times of
persecution. This to a certain extent is doubtless true, as in the case of the chapel of Santa Priscilla, where the altar or stone coffin of a martyr
remains with a small platform behind it for the priest or bishop to stand upon. But that they can have been so used to any large extent is rendered impossible by their limited
dimensions as none of them could hold more than fifty or sixty persons. In some of the catacombs, however, there are larger halls and connected suites of chapels which may possibly have been constructed for the purpose of congregational worship during the dark periods when the public exercise of the Christian religion was made penal.
The most remarkable of these is in the cemetery of Sant’
Agnese. It consists of five rectangular compartments, three on one side of the corridor
and two on the other, connected by a passage intersecting the gallery at right angles. Two of the five compartments are supposed to
have been assigned to male and two to female worshippers, the
fifth at the extremity of the whole, being reserved for the altar and its ministers. In the
center of the end wall stands a stone chair considered to have been the
episcopal cathedra, with a bench for the clergy on each side. There is no trace of an altar, which may,
as some scholars think, have been portable. The walls of the compartments are occupied by arched sepulchral recesses, above and below which are tiers of ordinary graves or loculi. The arrangements are certainly such as indicate a congregational purpose, but the extreme narrowness
of the suite, and still more of the passage which connects the two
divisions must have rendered it difficult for any but a small number to take any intelligent part in the services at the same time.
Although the idea of the use of the catacombs for religious worship may have been pressed too far, there can be no doubt that the sacred rites of the church were celebrated within them. We have
already spoken of the eucharistic celebrations of which the cubicula were the
scene; and still existing baptisteries prove that the other sacrament was also
administered there. The most remarkable of these baptisteries is that in the
catacomb of San Pontianus.
These Sant’
Agnese. are supposed by Marchi and others to indicate schoolrooms, where the catechumens were instructed by the bishop or presbyters. But this theory wants verification. It is impossible not
to be struck with the remarkable analogy between these rock
hewn chairs and those discovered in the Etruscan tombs, of the purpose of which no satisfactory explanation has been given.
Very exaggerated statements have been made as to the employment of the catacombs as
dwelling places by the Christians in times of persecution. We
have however sufficient Theories of evidence that they were used as places of refuge from the use of the fury of the
heathen in which the believers, especially the bishops and clergy, who would naturally
be the first objects of attack, might secrete themselves until the storm had blown over. This was a purpose for which they were
admirably adapted both by the intricacy of their labyrinthine passages, in which any one not possessing the clue would be inevitably lost, and the numerous small chambers and
hiding places at different levels which might be passed unperceived in the dark by the pursuers.
As a rule also the catacombs had
more than one entrance, and frequently communicated with an arenaria or
sand quarry; so that while one entrance was carefully watched, the pursued might escape in a totally different direction by another.
But to quote J. H. Parker, “the catacombs were never intended, nor fit for,
dwelling places, and the stories of persons living in them for months are probably fabulous."
Equally exaggerated are the statements as to the linear and lateral extent of the catacombs, and their intercommunication with one another.
The idea of general intercommunication is negated by the fact that the chief cemeteries are separated by low ground or valleys, where any subterranean galleries would be at once filled with water.