How those are to be admonished who do not even begin good things, and those who do not finish them when begun.
(Admonition 35.) Differently to be admonished are they who do not even begin good things, and those who in no wise complete such as they have begun. For as to those who do not even begin good things, for them the first need is, not to build up what they may wholesomely love, but to demolish that wherein they are wrongly occupied. For they will not follow the untried things they hear of, unless they first come to feel how pernicious are the things that they have tried; since neither does one desire to be lifted up who knows not the very fact that he has fallen; nor does one who feels not the pain of a wound seek any healing remedy. First, then, it is to be shewn to them how vain are the things that they love, and then at length to be carefully made known to them how profitable are the things that they let slip. Let them first see that what they love is to be shunned, and afterwards perceive without difficulty that what they shun is to be loved. For they sooner accept the things which they have not tried, if they recognize as true whatever discourse they may hear concerning the things that they have tried. So then they learn to seek true good with fulness of desire, when they have learnt with certainty of judgment how vainly they have held to what was false. Let them be told, therefore, both that present good things will soon pass away from enjoyment, and also that the account to be given of them will nevertheless endure, without passing away, for vengeance; since both what pleases them is withdrawn from them now against their will, and what pains them is reserved them, also against their will, for punishment. Thus may they be wholesomely filled with alarm by the same things in which they harmfully take delight; so that when the stricken soul, in sight of the deep ruin of its fall, perceives that it has reached a precipice, it may retrace its steps backward, and, fearing what it had loved, may learn to esteem highly what it once despised.
For hence it is that it is said to Jeremiah when sent to preach, See, I have this day set thee over the nations and over the kingdoms, to pluck out, and to pull down, and to destroy, and to scatter, and to build, and to plant (Jer. i. 10). Because, unless he first destroyed wrong things, he could not profitably build right things; unless he plucked out of the hearts of his hearers the thorns of vain love, he would certainly plant to no purpose the words
But, on the other hand, those who in no wise complete the good things they have begun are to be admonished to consider with cautious circumspection how that, when they accomplish not their purposes, they tear up with them even the things that had been begun. For, if that which is seen to be a thing to be done advances not through assiduous application, even that which had been well done falls back. For the human soul in this world is, as it were, in the condition of a ship ascending against the stream of a river: it is never suffered to stay in one place, since it will float back to the nethermost parts unless it strive for the uppermost. If then the strong hand of the worker carry not on to perfection the good things begun, the very slackness in working fights against what has been wrought. For hence it is that it is said through Solomon, He that is feeble and slack in work is brother to him that wasteth his works (Prov. xviii. 9). For in truth he who does not strenuously execute the good things he has begun imitates in the slackness of his negligence the hand of the destroyer. Hence it is said by the Angel to the Church of Sardis, Be watchful, and strengthen the things which remain, that are ready to die; for I find not thy works complete before my God (Rev. iii. 2). Thus, because the works had not been found complete before his God, he foretold that those which remained, even such as had been done, were about to die. For, if that which is dead in us be not kindled into life, that which is retained as though still alive is extinguished too. They are to be admonished that it might have been more tolerable for them not to have laid hold of the right way than, having laid hold of it, to turn their backs upon it. For unless they looked back, they would not grow weak with any torpor with regard to their undertaken purpose. Let them hear, then, what is written, It had been better for them not to have known the way of righteousness than, after they have known it, to be turned backward (2 Pet. ii. 21). Let them hear what is written; I would thou wert cold or hot: but, because than art lukewarm, and neither cold nor hot, I will begin to spue thee out of my mouth (Rev. 3:15, 16). For he is hot who both takes up and completes good purposes; but he is cold who does not even begin any to be completed. And as transition is made through lukewarmness from cold to heat, so through lukewarmness there is a return from heat to cold. Whosoever, then, has lost the cold of unbelief so as to live, but in no wise passes beyond lukewarmness so as to go on to burn, he doubtless, despairing of heat, while he