Nicene and Post-Nicene Fathers, Ser. II, Vol I:
The Life of Constantine with Orations of Constantine and Eusebius.: Chapter I

p. 500 Book II.

Chapter I.—Secret Persecution by Licinius, who causes Some Bishops to be put to Death at Amasia of Pontus.

In this manner, he of whom we have spoken continued to rush headlong towards that destruction which awaits the enemies of God; and once more, with a fatal emulation of their example whose ruin he had himself witnessed as the consequence of their impious conduct, he re-kindled the persecution of the Christians, like a long-extinguished fire, and fanned the unhallowed flame to a fiercer height than any who had gone before him.

At first, indeed, though breathing fury and threatenings against God, like some savage beast of prey, or some crooked and wriggling serpent, he dared not, from fear of Constantine, openly level his attacks against the churches of God subject to his dominion; but dissembled the virulence of his malice, and endeavored by secret and limited measures to compass the death of the bishops, the most eminent of whom he found means to remove, through charges laid against them by the governors of the several provinces. And the manner in which they suffered had in it something strange, and hitherto unheard of. At all events, the barbarities perpetrated at Amasia of Pontus surpassed every known excess of cruelty.