Footnote 495:[ (return) ]
It would seem from some passages as if faith and theological knowledge were according to Irenæus simply related as the "is" and the "why." As a matter of fact, he did express himself so without being really able to maintain the relationship thus fixed; for faith itself must also to some extent include a knowledge of the reason and aim of God's ways of salvation. Faith and theological knowledge are therefore, after all, closely interwoven with each other. Irenæus merely sought for a clear distinction, but it was impossible for him to find it in his way. The truth rather is that the same man, who, in opposition to heresy, condemned an exaggerated estimate of theoretical knowledge, contributed a great deal to the transformation of that faith into a monistic speculation.
Footnote 496:[ (return) ]
See 1. 10. 2: Και ουτε 'ο πανυ δυνατος εν λογω των εν ταις εκκλησιαις προεστωτων τουτων (scil. than the regula sidei) επει ουδεις γαρ υπερ τον διδασκαλον ουτε 'ο ασθενης εν τω λογω ελαττωσει την παραδοσιν. Μιας γαρ και της αυτης πιστεως ουσης ουτε 'ο πολυ περι αυτης δυναμενος ειπειν επλεονασεν, ουτε 'ο το ολιγον ηλαττονησε.
Footnote 497:[ (return) ]
See Bohringer's careful reviews of the theology of Irenæus and Tertullian (Kirchengeschichte in Biographien, Vol. I. 1st section, 1st half (2nd ed.), pp. 378-612, 2nd half, pp. 484-739).
Footnote 498:[ (return) ]
To the proof from prescription belong the arguments derived from the novelty and contradictory multiplicity of the Gnostic doctrines as well as the proofs that Greek philosophy is the original source of heresy. See Iren. II. 14. 1-6; Tertull. de præscr. 7; Apolog. 47 and other places; the Philosophoumena of Hippolytus. On Irenæus' criticism of Gnostic theology see Kunze, Gotteslehre des Irenäus, Leipzig, 1891. p. 8 ff.
Footnote 499:[ (return) ]
See Irenæus II. 1. 2-4: II. 31. 1. Tertull., adv. Marc. I. 2-7. Tertullian proves that there can be neither two morally similar, nor two morally dissimilar Deities; see also I. 15.
Footnote 500:[ (return) ]
See Irenæus II. 13. Tertullian (ad Valent. 4) very appropriately defined the æons of Ptolemy as "personales substantias extra deum determinatas, quas Valentinus in ipsa summa divinitatis ut sensus et affectus motus incluserat."
Footnote 501:[ (return) ]
See Irenæus, l.c., and elsewhere in the 2nd Book, Tertull. adv. Valent. in several passages. Moreover, Irenæus still treated the first 8 Ptolemaic æons with more respect than the 22 following, because here at least there was some appearance of a Biblical foundation. In confuting the doctrine of æons he incidentally raised several questions (II. 17. 2), which Church theologians discussed in later times, with reference to the Son and Spirit. "Quæritur quemadmodum emissi sunt reliqui æones? Utrum uniti ei qui emiserit, quemadmodum a sole radii, an efficabiliter et partiliter, uti sit unusquisque eorum separatim et suam figurationem habens, quemadmodum ab homine homo ... Aut secundum germinationem, quemabmodum ab arbore rami? Et utrum eiusdem substantiæ exsistebant his qui se emiserunt, an ex altera quadam substantia substantiam habentes? Et utrum in eodem emissi sunt, ut eiusdem temporis essent sibi?... Et utrum simplices quidam et uniformes et undique sibi æquales et similes, quemadmodum spiritus et lumina emissa sunt, an compositi et differentes"? See also II. 17. 4: "Si autem velut a lumine lumina accensa sunt... velut verbi gratia a facula faculæ, generatione quidem et magnitudine fortasse distabunt ab invicem; eiusdem autem substantive cum sint cum principe emissionis ipsorum, aut omnes impassibiles perseverant aut et pater ipsorum participabit passiones. Neque enim quæ postea accensa est facula, alterum lumen habebit quam illud quod ante eam fuit." Here we have already a statement of the logical reasons, which in later times were urged against the Arian doctrine.
Footnote 502:[ (return) ]
See Iren. II. 17. 5 and II. 18.
Footnote 503:[ (return) ]
See Iren. II. 4. 2.
Footnote 504:[ (return) ]
Tertullian in particular argued in great detail (adv. Marc. I. 9-19) that every God must, above all, have revealed himself as a creator. In opposition to Marcion's rejection of all natural theology, he represents this science as the foundation of all religious belief. In this connection he eulogised the created world (I. 13) and at the same time (see also the 2nd Book) argued in favour of the Demiurge, i.e., of the one true God. Irenæus urged a series of acute and weighty objections to the cosmogony of the Valentinians (see II. 1-5), and showed how untenable was the idea of the Demiurge as an intermediate being. The doctrines that the Supreme Being is unknown (II. 6), that the Demiurge is the blind instrument of higher æons, that the world was created against the will of the Supreme God, and, lastly, that our world is the imperfect copy of a higher one were also opposed by him with rational arguments. His refutation of the last conception is specially remarkable (II. 7). On the idea that God did not create the world from eternal matter see Tertull., adv. Hermog.