36.  Make thou thy fold with the sheep:  flee from the wolves:  depart not from the Church.  Hate those also who have ever been suspected in such matters:  and unless in time thou perceive their repentance, do not rashly trust thyself among them.  The truth of the Unity of God has been delivered to thee:  learn to distinguish the pastures of doctrine.  Be an approved banker This saying is quoted three times in the Clementine Homilies as spoken by our Lord.  See Hom. II. § 51; III. § 50; XVIII. § 20:  “Every man who wishes to be saved must become, as the Teacher said, a judge of the books written to try us.  For thus He spake:  Become experienced bankers.  Now the need of bankers arises from the circumstance that the spurious is mixed up with the genuine.” On the same saying, quoted as Scripture in the Apostolic Constitutions (II. § 36), Cotelerius suggests that in oral tradition, or in some Apocryphal book, the proverb was said to come from the Old Testament, and was added by some transcriber as a gloss in the margin of Matt. xxv. 27, or Luke xix. 23.  Dionysius of Alexandria, Epist. VII., speaks of “the Apostolic word, which thus urges all who are endowed with greater virtue, ‘Be ye skillful money-changers,’” referring apparently as here to 1 Thess. v. 21, 22, “try all things, &c.”  (See Euseb. E.H. VII. ch. 6 in this series:  Suicer. Thesaurus, Τραπεζίτης:  and Resch. (Agrapha, pp. 233–239.), holding fast that which is good, abstaining from every form of evil 1 Thess. v. 21, 22..  Or if thou hast ever been such as they, recognise and hate thy delusion.  For there is a way of salvation, if thou reject the vomit, if thou from thy heart detest it, if thou depart from them, not with thy lips only, but with thy soul also:  if thou worship the Father of Christ, the God of the Law and the Prophets, if thou acknowledge the Good and the Just to be one and the same God. Compare § 13 of this Lecture, where Cyril seems to refer especially to the heresy of Manes, as described in the Disputatio Archelai, cap. 6:  “If you are desirous of being instructed in the faith of Manes, hear it briefly from me.  That man worships two gods, unbegotten, self-originate, eternal, opposed one to the other.  The one he represents as good, and the other as evil, naming the one Light, and the other Darkness.”  And may He preserve you all, guarding you from falling or stumbling, stablished in the Faith, in Christ Jesus our Lord, to Whom be glory for ever and ever.  Amen.