Prosper, lib. 2 _de vitâ contemplat._ c. 3, and many other writers of this century, treat of the relative duties of the Christian master and his Christian slave. The zeal and charity of several holy men led them to make extraordinary sacrifices during this period, to redeem the captives from the barbarians: besides the remarkable instance of Paulinus, we have the ardent and persevering charity of Exuperius, bishop of Toulouse, who sold the plate belonging to the church, and used glass for the chalice, that he might be able by every species of economy to procure liberty for the enslaved. Nor was this a solitary instance. About the year 513, Pope Symmachus called a national council, by which, among other enactments, he established the rule that under no circumstances, could the church property be alienated. See Bower, vol. ii. p. 277. About the year 535, Cæsarius, primate of Arles, applied to Pope Agapetus for means to relieve the poor Christians in Gaul. But, at that time, the church being quite destitute of money, the pope excused himself, and quoted the decree of Symmachus. The Arians, and some others, hence inculcated the doctrine that the alienation of church property, under any circumstances, was sacrilege. The laws of the empire also forbid such alienation, but with the proviso, “except there was no other means by which the poor could be relieved in time of famine, nor the captives be redeemed from slavery.” Such was the practice among the most pious of the age. St. Ambrose did not scruple to melt down the communion-plate of the church of Milan to redeem some captives, who otherwise must have continued in slavery. The Arians charged him with sacrilege: in answer to which he wrote his Apology, which has reached this late day, as the rules and reasons of the church in such cases. He says—“Is it not better that the plate should be melted by the bishop to maintain the poor, when they can be maintained by no other means, than that it should become the spoil and plunder of a sacrilegious enemy? Will not the Lord thus expostulate with us, Why did you suffer so many helpless persons to die with hunger, when you had gold to relieve and support them? Why were so many captives carried away and sold without ransom? Why were so many suffered to be slain by the enemy? It would have been better to have preserved the vessels of living men than lifeless metals. To this, what answer can be returned? Should one say, I was afraid that the temple of God should want its ornaments: Christ would answer, My sacraments require no gold, nor do they please me more for being ministered in gold, as they are not to be bought with gold. The ornament of my sacrament is the redemption of captives; and those alone are precious vessels that redeem souls from death.”