1. Chap. I.

If acquaintance with the treatises which specially occupy me, and from which I am unwilling to be turned aside to anything else, is so highly valued by your Holiness, let some one be sent to copy them for you. For I have now finished several of those which had been commenced by me this year before Easter, near the beginning of Lent. For, to the three books on the City of God, in opposition to its enemies, the worshippers of demons, I have added two others, and in these five books I think enough has been said to answer those who maintain that the [heathen] gods must be worshipped in order to secure prosperity in this present life, and who are hostile to the Christian name from an idea that that prosperity is hindered by us. In the sequel I must, as I promised in the first book, ¹ answer those who think that the worship of their gods is the only way to obtain that life after death with a view to obtain which we are Christians. I have dictated also, in volumes of considerable size, expositions of three Psalms, the 68th, the 72d, and the 78th. Commentaries on the other Psalms--not yet dictated, nor even entered on--are eagerly expected and demanded from me. From these studies I am unwilling to be called away and hindered by any questions thrusting themselves upon me from another quarter; yea, so unwilling, that I do not wish to turn at present even to the books on the Trinity, which I have long had on hand and have not yet completed, because they require a great amount of labour, and I believe that they are of a nature to be understood only by few; on which account they claim my attention less urgently than writings which may, I hope, be useful to very many.