ake continual additions to the rule of faith, whilst at
the same time continuing to assert its identity with the baptismal
confession. We must make the reservation, however, that not only the
baptismal confession, but other fixed propositions as well, formed the
basis on which particular rules of faith were formulated.]

[Footnote 39: Besides Irenaeus I. 10. 1, 2, cf. 9. 1-5; 22. 1; II. 1. 1;
9. 1; 28. 1; 32. 3, 4; III. 1-4; 11. 1; 12. 9; 15. 1; 16. 5 sq.; 18. 3;
24. 1; IV. 1. 2; 9. 2; 20. 6; 33. 7 sq.; V. Praef. 12. 5; 20. 1.]

[Footnote 40: See Iren. I. 31. 3; II. Praef. 19. 8.]

[Footnote 41: This expression is not found in Irenaeus, but is very
common in Tertullian.]

[Footnote 42: See de praescr. 13: "Haec regula a Christo instituta nullas
habet apud nos quaestiones."]

[Footnote 43: See I. c. 14: "Ceterum manente forma regulae in suo ordine
quantumlibet quaeras et tractes." See de virg. vol. 1.]

[Footnote 44: See 1. c. 14: "Fides in regula posita est, habet legem et
salutem de observatione legis," and de vir. vol. 1.]

[Footnote 45: See de praescr. 21: "Si haec ita sunt, constat perinde omnem
doctrinam, quae cum illis ecclesiis apostolicis matricibus et
originalibus fidei conspiret, veritati deputandum ... Superest ergo ut
demonstremus an haec nostra doctrina, cujus regulam supra edidimus, de
apostolorum traditione censeatur ... Communicamus cum ecclesiis
catholicis, quod nulla doctrina diversa." De praescr. 32: "Ecclesiae, quae
licet nullum ex apostolis auctorem suum proferant, ut multo posteriores,
tamen in eadem fide conspirantes non minus apostolicae deputantur pro
consanguinitate doctrinae." That Tertullian regards the baptismal
confession as identical with the _regula fidei_, just as Irenaeus does,
is shown by the fact that in de spectac. 4 ("Cum aquam ingressi
Christianam fidem in legis suae verba profitemur, renuntiasse nos diabolo
et pompae et angelis eius ore nostro contestamur.") the baptismal
confession is the _lex_. He also calls it "sacramentum" (military oath)
in ad mart. 3; de idolol. 6; de corona 11; Scorp. 4. But he likewise
gives the same designation to the interpreted baptismal confession (de
praescr. 20, 32; adv. Marc. IV. 5); for we must regard the passages cited
as referring to this. Adv. Marc. I. 21: "regula sacramenti;" likewise V.
20, a passage specially instructive as to the fact that there can be
only one regula. The baptismal confession itself had a fixed and short
form (see de