Chapter 26.--Obscure Passages are to Be Interpreted by Those Which are Clearer.
Now from the places where the sense in which they are used is more manifest we must gather the sense in which they are to be understood in obscure passages. For example, there is no better way of understanding the words addressed to God, "Take hold of shield and buckler and stand up for mine help," [1892] than by referring to the passage where we read, "Thou, Lord, hast crowned us with Thy favor as with a shield." [1893] And yet we are not so to understand it, as that wherever we meet with a shield put to indicate a protection of any kind, we must take it as signifying nothing but the favor of God. For we hear also of the shield of faith, "wherewith," says the apostle, "ye shall be able to quench all the fiery darts of the wicked." [1894] Nor ought we, on the other hand, in regard to spiritual armor of this kind to assign faith to the shield only; for we read in another place of the breastplate of faith: "putting on," says the apostle, "the breastplate of faith and love." [1895]
[1892] Ps. xxxv. 2.
[1893] Ps. v. 12.
[1894] Eph. vi. 16.
[1895] l Thess. v. 8.
Chapter 27.--One Passage Susceptible of Various Interpretations.
38. When, again, not some one interpretation, but two or more interpretations are put upon the same words of Scripture, even though the meaning the writer intended remain undiscovered, there is no danger if it can be shown from other passages of Scripture that any of the interpretations put on the words is in harmony with the truth. And if a man in searching the Scriptures endeavors to get at the intention of the author through whom the Holy Spirit spoke, whether he succeeds in this endeavor, or whether he draws a different meaning from the words, but one that is not opposed to sound doctrine, he is free from blame so long as he is supported by the testimony of some other passage of Scripture. For the author perhaps saw that this very meaning lay in the words which we are trying to interpret; and assuredly the Holy Spirit, who through him spoke these words, foresaw that this interpretation would occur to the reader, nay, made provision that it should occur to him, seeing that it too is founded on truth. For what more liberal and more fruitful provision could God have made in regard to the Sacred Scriptures than that the same words might be understood in several senses, all of which are sanctioned by the concurring testimony of other passages equally divine?
Chapter 28.-- It is Safer to Explain a Doubtful Passage by Other Passages of Scripture Than by Reason.
39. When, however, a meaning is evolved of such a kind that what is doubtful in it cannot be cleared up by indubitable evidence from Scripture, it remains for us to make it clear by the evidence of reason. But this is a dangerous practice. For it is far safer to walk by the light of Holy Scripture; so that when we wish to examine the passages that are obscured by metaphorical expressions, we may either obtain a meaning about which there is no controversy, or if a controversy arises, may settle it by the application of testimonies sought out in every portion of the same Scripture.
Chapter 29.--The Knowledge of Tropes is Necessary.
40. Moreover, I would have learned men to know that the authors of our Scriptures use all those forms of expression which grammarians call by the Greek name tropes, and use them more freely and in greater variety than people who are unacquainted with the Scriptures, and have learnt these figures of speech from other writings, can imagine or believe. Nevertheless those who know these tropes recognize them in Scripture, and are very much assisted by their knowledge of them in understanding Scripture. But this is not the place to teach them to the illiterate, lest it might seem that I was teaching grammar. I certainly advise, however, that they be learnt elsewhere, although indeed I have already given that advice above, in the second book--namely, where I treated of the necessary knowledge of languages. For the written characters from which grammar itself gets its name (the Greek name for letters being grammata are the signs of sounds made by the articulate voice with which we speak. Now of some of these figures of speech we find in Scripture not only examples (which we have of them all), but the very names as well: for instance, allegory, enigma, and parable. However, nearly all these tropes which are said to be learnt as a matter of liberal education are found even in the ordinary speech of men who have learnt no grammar, but are content to use the vulgar idiom. For who does not say, "So may you flourish?" And this is the figure of speech called metaphor. Who does not speak of a fish-pond [1896] in which there is no fish, which was not made for fish, and yet gets its name from fish? And this is the figure called catachresis.
41. It would be tedious to go over all the rest in this way; for the speech of the vulgar makes use of them all, even of those more curious figures which mean the very opposite of what they say, as for example, those called irony and antiphrasis. Now in irony we indicate by the tone of voice the meaning we desire to convey; as when we say to a man who is behaving badly, "You are doing well." But it is not by the tone of voice that we make an antiphrasis to indicate the opposite of what the words convey; but either the words in which it is expressed are used in the opposite of their etymological sense, as a grove is called lucus from its want of light; [1897] or it is customary to use a certain form of expression, although it puts yes for no by a law of contraries, as when we ask in a place for what is not there, and get the answer, "There is plenty;" or we add words that make it plain we mean the opposite of what we say, as in the expression, "Beware of him, for he is a good man." And what illiterate man is there that does not use such expressions, although he knows nothing at all about either the nature or the names of these figures of speech? And yet the knowledge of these is necessary for clearing up the difficulties of Scripture; because when the words taken literally give an absurd meaning, we ought forthwith to inquire whether they may not be used in this or that figurative sense which we are unacquainted with; and in this way many obscure passages have had light thrown upon them.
[1896] The word piscina (literally a fish-pond) was used in post-Augustan times for any pool of water, a swimming pond, for instance, or a pond for cattle to drink from.
[1897] Quod minime luceat.