Chapter XXXVIII.
That sometimes lighter vices are to be left alone, that more grievous ones may be removed.
But since, when the sickness of two vices attacks a man, one presses upon him more lightly, and the other perchance more heavily, it is undoubtedly right to haste to the succour of that through which there is the more rapid tendency to death. And, if the one cannot be restrained from causing the death which is imminent unless the other which is contrary to it increase, the preacher must be content by skilful management in his exhortation to suffer one to increase, to the end that he may keep the other back from causing the death which is imminent. When he does this, he does not aggravate the disease, but preserves the life of his sufferer to whom he administers the medicine, that he may find a fitting time for searching out means of recovery. For there is often one who, while he puts no restraint on his gluttony in food, is presently pressed hard by the stings of lechery, which is on the point of overcoming him, and who, when, terrified by the fear of this struggle, he strives to restrain himself through abstinence, is harassed by the temptation of vain-glory: in which case certainly one vice is by no means extinguished unless the other be fostered. Which plague then should be the more ardently attacked but that which presses on the man the more dangerously? For it is to be tolerated that through the virtue of abstinence arrogance should meanwhile grow against one that is alive, lest through gluttony lechery should cut him off from life entirely. Hence it is that Paul, when he considered that his weak hearer would either continue to do evil or rejoice in the reward of human praise for well-doing, said, Wilt thou not be afraid of the power? Do that which is good, and thou shalt have praise of the same (Rom. xiii. 3). For it is not that good things should be done in order that no human power may be feared, or that the glory of transitory praise may be thereby won; but, considering that the weak soul could not rise to so great strength as to shun at the same time both wickedness and praise, the excellent preacher in his admonition offered something and took away something. For by conceding mild ailments he drew off keener ones; that, since the mind could not rise all at once to the relinquishing of all its vices, it might, while left in familiarity with some one of them, be taken off without difficulty from another.
Chapter XXXIX.
That deep things ought not to be preached at all to weak souls.
But the preacher should know how to avoid drawing the mind of his hearer beyond its strength, lest, so to speak, the string of the soul, when stretched more than it can bear, should be broken. For all deep things should be covered up before a multitude of hearers, and scarcely opened to a few. For hence the Truth in person says, Who, thinkest thou, is the faithful and wise steward, whom his Lord has appointed over his household, to give them their measure of wheat in due season? (Luke xii. 42). Now by a measure of wheat is expressed a portion of the Word, lest, when anything is given to a narrow heart beyond its capacity, it be spilt. Hence Paul says, I could not speak unto you as unto spiritual, but as unto carnal. As it were to babes in Christ, I have given you milk to drink, and not meat (1 Cor. iii. 1, 2). Hence Moses, when he comes on from the sanctuary of God, veils his shining face before the people; because in truth He shews not to multitudes the secrets of inmost brightness (Exod. xxxiv. 33, 35). Hence it is enjoined on him by the Divine voice that if any one should dig a cistern, and not cover it, and an ox or ass should fall into it, he should pay the price (Exod. xxi. 33, 34), because when one who has arrived at the deep streams of knowledge covers them not up before the brutish hearts of his hearers, he is adjudged as liable to penalty, if through his words a soul, whether clean or unclean, be caught on a stumbling-stone. Hence it is said to the blessed Job, Who hath given understanding unto the cock? (Job xxxviii. 36). For a holy preacher, crying aloud in time of darkness, is as the cock crowing in the night, when he says, It is even now the hour for us to arise from sleep (Rom. xiii. 11). And again, Awake ye righteous, and sin not (1 Cor. xv. 34). But the cock is wont to utter loud chants in the deeper hours of the night; but, when the time of morning is already at hand, he frames small and slender tones; because, in fact, he who preaches aright cries aloud plainly to hearts that are still in the dark, and shews them nothing of hidden mysteries, that they may then hear the more subtle teachings concerning heavenly things, when they draw nigh to the light of truth.