In the meanwhile Valens, making his residence at Antioch, was wholly undisturbed by foreign wars; for the barbarians on every side restrained themselves within their own boundaries. Nevertheless, he himself waged a most cruel war against those who maintained the homoousian' doctrine, inflicting on them more grievous punishments every day; until the philosopher Themistius by his Appealing Oration
Christianity · Church History · Ecclesiastical History
Book IV, Ch. 32 — The Emperor Valens, appeased by the Oration of Themistius the Philosopher, abates his Persecution of the Christians.
Ecclesiastical History · Socrates Scholasticus