Omanorum, or Kerek of Ammon,[Plin. Hist. Nat. l.6,c.28.] to distinguish
it from another Kerek, now called Kerek el Shobak. The former Kerek was
afterwards restored by the Christians to the Jewish division of Moab, to
which, being south of the river Arnon, it strictly belonged, and it was
then called in Greek Charagmoba, under which name we find it mentioned
as one of the cities and episcopal dioceses of the third
Palestine.[Hierocl. Synecd. Notit. Episc. Graec.]

When the stream of commerce which had enriched the Nabataei had partly
reverted to its old Egyptian channel, and had partly taken the new
course, which created a Palmyra in the midst of a country still more
destitute of the commonest gifts of nature, then Arabia Petraea,[A
comparison of the architecture at Wady Mousa, and at Tedmour,
strengthens the opinion, that Palmyra flourished at a period later than
Petra.] Wady Mousa was gradually depopulated. Its river, however, and
the intricate recesses of its rocky valleys, still attract and give
security to a tribe of Arabs; but the place being defensible only by
considerable numbers, and being situated in a less fertile country than
Kerek, was less adapted to be the chief town of the Nabataei, when they
had returned to their natural state of divided wanderers or small
agricultural communities. The Greek bishopricks of the third Palestine
were obliterated by the Musulman conquest, with the sole exception of
the metropolitan Petra, whose titular bishop still resides at Jerusalem,
and occasionally visits Kerek, as being the only place in his province
which contains [p.xi]a Christian community. Hence Kerek has been
considered the see of the bishoprick of Petra, and hence has arisen the
erroneous opinion often adopted by travellers from the Christians of
Jerusalem, that Kerek is the site of the ancient capital of Arabia
Petraea.