more from augustine on tichonius
Chapter 30.— The Rules of Tichonius the Donatist Examined.
42. One Tichonius, who, although a Donatist himself, has written most triumphantly against the Donatists (and herein showed himself of a most inconsistent disposition, that he was unwilling to give them up altogether), wrote a book which he called the Book of Rules, because in it he laid down seven rules, which are, as it were, keys to open the secrets of Scripture. And of these rules, the first relates to the Lord and His body, the second to the twofold division of the Lord's body, the third to the promises and the law, the fourth to species and genus, the fifth to times, the sixth to recapitulation, the seventh to the devil and his body. Now these rules, as expounded by their author, do indeed, when carefully considered, afford considerable assistance in penetrating the secrets of the sacred writings; but still they do not explain all the difficult passages, for there are several other methods required, which are so far from being embraced in this number of seven, that the author himself explains many obscure passages without using any of his rules; finding, indeed, that there was no need for them, as there was no difficulty in the passage of the kind to which his rules apply.
