Heraclius withheld his person from the dangers of the field; but his presumption, or perhaps his despondency, suggested a peremptory order, that the fate of the province and the war should be decided by a single battle.

The Syrians were attached to the standard of Rome and of the cross: but the noble, the citizen, the peasant, were exasperated by the injustice and cruelty of a licentious host, who oppressed them as subjects, and despised them as strangers and aliens.

A report of these mighty preparations was conveyed to the Saracens in their camp of Emesa, and the chiefs, though resolved to fight, assembled a council: the faith of Abu Obeidah would have expected on the same spot the glory of martyrdom; the wisdom of Caled advised an honorable retreat to the skirts of Palestine and Arabia, where they might await the succors of their friends, and the attack of the unbelievers.

A speedy messenger soon returned from the throne of Medina, with the blessings of Omar and Ali, the prayers of the widows of the prophet, and a reenforcement of eight thousand Moslems.

In their way they overturned a detachment of Greeks, and when they joined at Yermuk the camp of their brethren, they found the pleasing intelligence, that Caled had already defeated and scattered the Christian Arabs of the tribe of Gassan.