Unlike the period of the Roman Empire in the sixth century Arabia was more

Religious ... they prayed up to 5 times a day and still do ... Also Rome was very sophisticated in it's military ...

Like the other Southern Arabian kingdoms, it gained great wealth from the trade of frankincense and myrrh incense, which were burned at altars. Additionally, from the beginning of the first millennium BCE, Southern Arabia was the home to a number of kingdoms such as the Sabaeans and the coastal areas of Eastern Arabia were controlled by the Iranian Parthians and Sassanians from 300 BCE.