6. But let us be far from supposing that there is any contrariety between this milk and the food of spiritual things that has to be received by the sound understanding, and which was wanting to the Colossians and Thessalonians, and had still to be supplied. For the supply of the deficiency implies no disapproval of that which existed. For even in the very food that we take, so far is there from being any contrariety between milk and solid food, that the latter itself becomes milk, in order to make it suitable to babes, whom it reaches through the medium of the mother's or the nurse's body; so did also mother Wisdom herself, who is solid food in the lofty sphere of angels, condescend in a manner to become milk for babes, when the Word became flesh, and dwelt among us. [1608] But the man Christ Himself, who in His true flesh, true cross, true death, and true resurrection is called the pure milk of babes, is, when rightly understood by the spiritual, found to be the Lord of angels. Accordingly, babes are not to be so fed with milk as always to remain without understanding the Godhead of Christ; nor are they to be so withdrawn from milk as to turn their backs on His manhood. And the same thing may also be stated in another way in this manner: they are neither so to be fed with milk as never to understand Christ as Creator, nor so to be withdrawn from milk as ever to turn their backs on Christ as Mediator. In this respect, indeed, the similitude of maternal milk and solid food scarcely harmonizes with the reality as thus stated, but rather that of a foundation: for when the child is weaned, so as to be withdrawn from the nourishment of infancy, he never looks again amongst solid food for the breasts which he sucked; but Christ crucified is both milk to sucklings and meat to the more advanced. And the similitude of a foundation is on this account the more suitable, because, for the completion of the structure, the building is added without the foundation being withdrawn.
7. And since this is the case, do you, whoever you be, who are doubtless many of you still babes in Christ, be making advances towards the solid food of the mind, not of the belly. Grow in the ability to distinguish good from evil, and cleave more and more to the Mediator, who delivers you from evil; which does not admit of a local separation from you, but rather of being healed within you. But whoever shall say to you, Believe not Christ to be truly man, or that the body of any man or animal whatever was created by the true God, or that the Old Testament was given by the true God, and anything else of the same sort, for such things as these were not told you previously, when your nourishment was milk, because your heart was still unfit for the apprehension of the truth: such an one provides you not with meat, but with poison. For therefore it was that the blessed apostle, in addressing those who appeared to him already perfect, even after calling himself imperfect, said, "Let us, therefore, as many as be perfect, be thus minded: and if in anything ye be otherwise minded, God shall reveal even this unto you." And that they might not rush into the hands of seducers, whose desire would be to turn them away from the faith by promising them the knowledge of the truth, and suppose such to be the meaning of the apostle's words, "God shall reveal even this unto you," he forthwith added, "Nevertheless, whereto we have already attained, let us walk by the same rule." [1609] If, then, thou hast come to some understanding of what is not at variance with the rule of the Catholic faith, whereto thou hast attained as the way that is guiding thee to thy fatherland; and hast so understood it as to feel it a duty to dismiss all doubts whatever on the subject: add to the building, but do not abandon the foundation. And surely of such a character ought to be any teaching given by elders to those who are babes, as not to involve the assertion that Christ the Lord of all, and the prophets and apostles, who are much farther advanced in age than themselves, had in any respect spoken falsely. And not only ought you to avoid the babbling seducers of the mind, who prate away at their fables and falsehoods, and in such vanities make the promise, forsooth, of profound science contrary to the rule of faith, which we have accepted as Catholic; but avoid those also as a still more insidious pest than the others, who discuss truthfully enough the immutability of the divine nature, or the incorporeal creature, or the Creator, and fully prove what they affirm by the most conclusive documents and reasonings, and yet attempt to turn you away from the one Mediator between God and men. For such are those of whom the apostle says, "Because that, when they knew God, they glorified Him not as God." [1610] For what advantage is it to have a true understanding of the immutable Good to one who has no hold of Him by whom there is deliverance from evil? And let not the admonition of the most blessed apostle by any means lose its place in your hearts: "If any man preach any other gospel unto you than that ye have received, let him be accursed." [1611] He does not say, More than ye have received; but, "Other than ye have received." For had he said the former, he would be prejudging himself, inasmuch as he desired to come to the Thessalonians to supply what was lacking in their faith. But one who supplies, adds to what was deficient, without taking away what existed: while he that transgresses the rule of faith, is not progressing in the way, but turning aside from it.
8. Accordingly, when the Lord says, "I have yet many things to say unto you, but ye cannot bear them now," He means that what they were still ignorant of had afterwards to be supplied to them, and not that what they had already learned was to be subverted. And He, indeed, as I have already shown in a former discourse, could so speak, because the very things which He had taught them, had He wished to unfold them to them in the same way as they are conceived in regard to Him by the angels, their still remaining human weakness would be unable to bear. But any spiritual man may teach another man what he knows, provided the Holy Spirit grant him an enlarged capacity for profiting, wherein also the teacher himself may get some further increase, in order that both may be taught of God. [1612] Although even among the spiritual themselves there are some, doubtless, who are of greater capacity and in a better condition than others; so that one of them attained even to things of which it is not lawful for a man to speak. Taking advantage of which, there have been some vain individuals, who, with a presumption that betrays the grossest folly, have forged a Revelation of Paul, crammed with all manner of fables, which has been rejected by the orthodox Church; affirming it to be that whereof he had said that he was caught up into the third heavens, and there heard unspeakable words "which it is not lawful for a man to utter." [1613] Nevertheless, the audacity of such might be tolerable, had he said that he heard words which it is not as yet lawful for a man to utter; but when he said, "which it is not lawful for a man to utter," who are they that dare to utter them with such impudence and non-success? But with these words I shall now bring this discourse to a close; whereby I would have you to be wise indeed in that which is good, but untainted by that which is evil.
[1591] 1 Cor. iii. 1, 2.
[1592] 1 Cor. i. 23, 24.
[1593] 1 Cor. i. 12.
[1594] Gal. vi. 14.
[1595] 1 Cor. xiv. 37, 38.
[1596] Gal. iv. 9.
[1597] Eph. i. 4.
[1598] 1 Cor. ii. 2.
[1599] 1 Cor. ii. 14.
[1600] 1 Cor. i. 30, 31.
[1601] 1 Cor. i. 12.
[1602] Heb. v. 12-14.
[1603] 1 Cor. ii. 6.
[1604] In place of to stereoma, solidity, steadfastness, Augustin reads to husterema, that which is lacking. So also in his epistle to Paulinus, which is marked 149 (in Migne's edition of Augustin).
[1605] Col. ii. 5.
[1606] 1 Thess. iii. 10.
[1607] Heb. vi. 1, 2.
[1608] Chap. i. 1, 14.
[1609] Phil. iii. 15, 16.
[1610] Rom. i. 21.
[1611] Gal. i. 9.
[1612] Chap. vi. 45.
[1613] 2 Cor. xii. 2, 4.
Tractate XCIX.