The sons of Constantine must have been admitted from their childhood into the rank of catechumens; but they imitated, in the delay of their baptism, the example of their father. Like him they presumed to pronounce their judgment on mysteries into which they had never been regularly initiated; and the fate of the Trinitarian controversy depended, in a great measure, on the sentiments of Constantius; who inherited the provinces of the East, and acquired the possession of the whole empire. The Arian presbyter or bishop, who had secreted for his use the testament of the deceased emperor, improved the fortunate occasion which had introduced him to the familiarity of a prince, whose public counsels were always swayed by his domestic favorites. The eunuchs and slaves diffused the spiritual poison through the palace, and the dangerous infection was communicated by the female attendants to the guards, and by the empress to her unsuspicious husband. The partiality which Constantius always expressed towards the Eusebian faction, was insensibly fortified by the dexterous management of their leaders; and his victory over the tyrant Magnentius increased his inclination, as well as ability, to employ the arms of power in the cause of Arianism. While the two armies were engaged in the plains of Mursa, and the fate of the two rivals depended on the chance of war, the son of Constantine passed the anxious moments in a church of the martyrs under the walls of the city. His spiritual comforter, Valens, the Arian bishop of the diocese, employed the most artful precautions to obtain such early intelligence as might secure either his favor or his escape. A secret chain of swift and trusty messengers informed him of the vicissitudes of the battle; and while the courtiers stood trembling round their affrighted master, Valens assured him that the Gallic legions gave way; and insinuated with some presence of mind, that the glorious event had been revealed to him by an angel. The grateful emperor ascribed his success to the merits and intercession of the bishop of Mursa, whose faith had deserved the public and miraculous approbation of Heaven. The Arians, who considered as their own the victory of Constantius, preferred his glory to that of his father. Cyril, bishop of Jerusalem, immediately composed the description of a celestial cross, encircled with a splendid rainbow; which during the festival of Pentecost, about the third hour of the day, had appeared over the Mount of Olives, to the edification of the devout pilgrims, and the people of the holy city. The size of the meteor was gradually magnified; and the Arian historian has ventured to affirm, that it was conspicuous to the two armies in the plains of Pannonia; and that the tyrant, who is purposely represented as an idolater, fled before the auspicious sign of orthodox Christianity.

The sentiments of a judicious stranger, who has impartially considered the progress of civil or ecclesiastical discord, are always entitled to our notice; and a short passage of Ammianus, who served in the armies, and studied the character of Constantius, is perhaps of more value than many pages of theological invectives. "The Christian religion, which, in itself," says that moderate historian, "is plain and simple, he confounded by the dotage of superstition. Instead of reconciling the parties by the weight of his authority, he cherished and promulgated, by verbal disputes, the differences which his vain curiosity had excited. The highways were covered with troops of bishops galloping from every side to the assemblies, which they call synods; and while they labored to reduce the whole sect to their own particular opinions, the public establishment of the posts was almost ruined by their hasty and repeated journeys." Our more intimate knowledge of the ecclesiastical transactions of the reign of Constantius would furnish an ample commentary on this remarkable passage, which justifies the rational apprehensions of Athanasius, that the restless activity of the clergy, who wandered round the empire in search of the true faith, would excite the contempt and laughter of the unbelieving world. As soon as the emperor was relieved from the terrors of the civil war, he devoted the leisure of his winter quarters at Arles, Milan, Sirmium, and Constantinople, to the amusement or toils of controversy: the sword of the magistrate, and even of the tyrant, was unsheathed, to enforce the reasons of the theologian; and as he opposed the orthodox faith of Nice, it is readily confessed that his incapacity and ignorance were equal to his presumption. The eunuchs, the women, and the bishops, who governed the vain and feeble mind of the emperor, had inspired him with an insuperable dislike to the Homoousion; but his timid conscience was alarmed by the impiety of Ætius. The guilt of that atheist was aggravated by the suspicious favor of the unfortunate Gallus; and even the death of the Imperial ministers, who had been massacred at Antioch, were imputed to the suggestions of that dangerous sophist. The mind of Constantius, which could neither be moderated by reason, nor fixed by faith, was blindly impelled to either side of the dark and empty abyss, by his horror of the opposite extreme; he alternately embraced and condemned the sentiments, he successively banished and recalled the leaders,