Know that thy brethren the Moslems design to march to Aiznadin, where there is an army of seventy thousand Greeks, who purpose to come against us, _that they may extinguish the light of God with their mouths; but God preserveth his light in spite of the infidels_.

As soon therefore as this letter of mine shall be delivered to thy hands, come with those that are with thee to Aiznadin, where thou shalt find us if it please the most high God." The summons was cheerfully obeyed, and the forty-five thousand Moslems, who met on the same day, on the same spot ascribed to the blessing of Providence the effects of their activity and zeal.
About four years after the triumph of the Persian war, the repose of Heraclius and the empire was again disturbed by a new enemy, the power of whose religion was more strongly felt, than it was clearly understood, by the Christians of the East.

In his palace of Constantinople or Antioch, he was awakened by the invasion of Syria, the loss of Bosra, and the danger of Damascus.

An army of seventy thousand veterans, or new levies, was assembled at Hems or Emesa, under the command of his general Werdan: and these troops consisting chiefly of cavalry, might be indifferently styled either Syrians, or Greeks, or Romans: _Syrians_, from the place of their birth or warfare; _Greeks_ from the religion and language of their sovereign; and _Romans_, from the proud appellation which was still profaned by the successors of Constantine.

On the plain of Aiznadin, as Werdan rode on a white mule decorated with gold chains, and surrounded with ensigns and standards, he was surprised by the near approach of a fierce and naked warrior, who had undertaken to view the state of the enemy.