Built at the time of the Roman occupation, it wasn't a conventional monastery, but probably was a place of great sanctity for the Nabateans.
Built as a traditional monastery, it's clear that this place wasn't of great importance to the Nabateans.
mnli hypothesis: Built as a traditional monastery, it's clear that this place wasn't of great importance to the Nabateans. premise: Built at the time of the Roman occupation, it wasn't a conventional monastery, but probably was a place of great sanctity for the Nabateans.