[Footnotes moved to the end and renumbered]
1. Legis, id est, of the Holy Scriptures.
2. docuimus.
3. vos esse divino indicio.
4. peccatores ----i.e. in the matter of the schism (cf. iv, 3 etc.).
5. It will be noticed that in this summary of the preceding Books, there is no express reference to the Fourth. For this reason Casaubon thinks that the two lines which are now printed at the end of the Fourth ought to be placed at the beginning of this Fifth Book; Probatum est ergo te non contra nos, sed contra vos dixisse, quod a te dictum est de oleo et sacrificio peccatoris.
6. quod Baptisma vestra violavit audacia.
7. multa contra vos pro nobis, quae sunt nostra, dixisti (cf. i, 5).
8. dictionis tuae. (Dictio is a formal piece of rhetoric.)
9. in processu tractatus tui. Tractatus is usually a sermon (cf. p. 176, note 2).
10. de aqua vera et falsa.
11. infirmando confirmas.
12. That administered by Catholics.
13. alterum te inanire professus es, ut alterum replere videreris. Videor is again used pleonastically.
14. extra haereticorum Baptisma. By heretics St. Optatus here understands heretics such as Marcion, Praxeas and Valentinus (cf. iv, 5), who denied the doctrine of the Trinity. As they did not baptise in the Name of the Trinity, baptism administered by them was certainly invalid (cf. notes i,p. 17; 2, p. 22). Of such varia et falsa baptismata (i, 12) there was to be no question in this Book. They lay outside its scope.
15. Baptisma alterum et alterum.
16. diversa, in the same way that Catholic Baptism differs from any baptism not administered in the Name of the Trinity.
17. auferre alterum, id est, to deny the validity of Baptism by Catholics.
18. id est, rebaptism by Donatists.
19. laborasti ut de secundo quasi primum facere videreris. We have here once more a pleonastic use of videor.
20. prosapia.
21. eius imago.
22. rem singularem post esse debere.
23. peritomen semel ablatum.
24. Trinitate confectum.