[Footnote 242: On this point the greatest uncertainty prevails in Cyprian. Sometimes he says that God himself installs the bishops, and it is therefore a deadly sin against God to criticise them (e.g., in ep. 66. 1); on other occasions he remembers that the bishops have been ordained by bishops; and again, as in ep. 67. 3, 4, he appears to acknowledge the community's right to choose and control them. Cf. the sections referring to Cyprian in Reuter's "Augustinische Studien" (Zeitschrift fuer Kirchengeschichte, Vol. VII., p. 199 ff.).] [Footnote 243: The Donatists were quite justified in appealing to Cyprian, that is, in one of his two aspects.] [Footnote 244: Origen not only distinguishes between different groups within the Church as judged by their spiritual understanding and moral development (Comm. in Matt. Tom. XI. at Chap. XV. 29; Hom. II. in Genes. Chap. 3; Hom. in Cantic. Tom. I. at Chap. I. 4: "ecclesia una quidem est, cum perfecta est; multae vero sunt adolescentulae, cum adhuc instruuntur et proficiunt"; Hom. III. in Levit. Chap. iii.), but also between spiritual and carnal members (Hom. XXVI. in Num. Chap. vii.) i.e., between true Christians and those who only bear that name without heartfelt faith--who outwardly take part in everything, but bring forth fruits neither in belief nor conduct. Such Christians he as little views as belonging to the Church as does Clement of Alexandria (see Strom. VII. 14. 87, 88). To him they are like the Jebusites who were left in Jerusalem: they have no part in the promises of Christ, but are lost (Comm. in Matt. T. XII. c. xii.). It is the Church's task to remove such members, whence we see that Origen was far from sharing Calixtus' view of the Church as a _corpus permixtum_; but to carry out this process so perfectly that only the holy and the saved remain is a work beyond the powers of human sagacity. One must therefore content oneself with expelling notorious sinners; see Hom. XXI. in Jos., c. i.: "sunt qui ignobilem et degenerem vitam ducunt, qui et fide et actibus et omni conversatione sua perversi sunt. Neque enim possibile est, ad liquidum purgari ecclesiam, dum in terris est, ita ut neque impius in ea quisquam, neque peccator residere videatur, sed sint in ea omnes sancti et beati, et in quibus nulla prorsus peccati macula deprehendatur. Sed sicut dicitur de zizaniis: Ne forte eradicantes zizania simul eradicetis et triticum, ita etiam super iis dici potest, in quibus vel dubia vel occulta peccata sunt.... Eos saltem eiiciamus quos possumus, quorum peccata manifesta sunt. Ubi enim peccatum non est evidens, eiicere de ecclesia neminem possumus." In this way indeed very many wicked people remain in the Church (Comm. in Matt. T. X. at c. xiii. 47 f.: [Greek: me xenizometha, ean horomen hemon ta athroismata pepleromena kai poneron]); _but in his work against Celsus Origen already propounded that empiric and relative theory of the Christian Churches which views them as simply