I.

In the country of the Arzuges it is customary, as I have heard, for the barbarians to take an oath, swearing by their false gods, in the presence of the decurion stationed on the frontier or of the tribune, when they have come under engagement to carry baggage to any part, or to protect the crops from depredation; and when the decurion certifies in writing that this oath has been taken, the owners or farmers of land employ them as watchmen of their crops; or travellers who have occasion to pass through their country hire them, as if assured of their now being trustworthy. Now a doubt has arisen in my mind whether the landowner who thus employs a barbarian, of whose fidelity he is persuaded in consequence of such an oath, does not make himself and the crops committed to that man's charge to share the defilement of that sinful oath; and so also with the traveller who may employ his services. I should mention, however, that in both cases the barbarian is rewarded for his services with money. Nevertheless in both transactions there comes in, besides the pecuniary remuneration, this oath before the decurion or tribune involving mortal sin. I am concerned as to whether this sin does not defile either him who accepts the oath of the barbarian, or at least the things which are committed to the barbarian's keeping. For whatever other terms be in the arrangement, even such as the payment of gold, and giving of hostages in security, nevertheless this sinful oath has been a real part of the transaction. Be pleased to resolve my doubts definitely and positively. For if your answer indicate that you are in doubt yourself, I may fall into greater perplexity than before.