Matthew 6:18

Vainglory can find a place not only in the splendor and pomp of worldly wealth but even in the sordid garment of sackcloth as well. It is then all the more dangerous because it is a deception under the pretense of service to God. When one dazzles by immoderate adornment of the body and its raiment or by the splendor of whatever else one may possess, by that very fact one is easily shown to desire ostentacious display. This person deceives nobody by a crafty semblance of holiness. But if, through extraordinary squalor and shabbiness, one is attracting others' attention to one's manner of professing Christianity, and if one is doing this of choice and not merely enduring it through necessity, then one may determine by one's other works whether one is doing it through an indifference toward needless adornment or through ambition of some kind. Indeed, the Lord has forewarned us to beware of wolves in sheep's clothing: "By their fruits you shall know them." Trials of one kind or another that cause these people to lose the very advantages they have gained through their dress or claimed to deny what they sought to gain by it will inevitably reveal whether it is a case of a wolf under a sheep's skin or a sheep under its own. But just as sheep ought not to change their skin even though wolves sometimes hide themselves beneath it, so a Christian ought not try to delight the eyes of others by needless adornment just because pretenders very often assume that scanty garb which necessity demands and assume it for the purpose of deceiving those who are less aware.

It is usual, therefore, to ask what He means, when He says: "But ye, when ye fast, anoint your head, and wash your faces, that ye appear not unto men to fast." For it would not be right in any one to teach (although we may wash our face according to daily custom) that we ought also to have our heads anointed when we fast. If, then, all admit this to be most unseemly, we must understand this precept with respect to anointing the head and washing the face as referring to the inner man. Hence, to anoint the head refers to joy; to wash the face, on the other hand, refers to purity: and therefore that man anoints his head who rejoices inwardly in his mind and reason. For we rightly understand that as being the head which has the pre-eminence in the soul, and by which it is evident that the other parts of man are ruled and governed. And this is done by him who does not seek his joy from without, so as to draw his delight in a fleshly way from the praises of men. For the flesh, which ought to be subject, is in no way the head of the whole nature of man. "No man," indeed, "ever yet hated his own flesh," as the apostle says, when giving the precept as to loving one's wife; but the man is the head of the woman, and Christ is the head of the man. Let him, therefore, rejoice inwardly in his fasting in this very circumstance, that by his fasting he so turns away from the pleasure of the world as to be subject to Christ, who according to this precept desires to have the head anointed. For thus also he will wash his face, i.e. cleanse his heart, with which he shall see God, no veil being interposed on account of the infirmity contracted from squalor; but being firm and stedfast, inasmuch as he is pure and guileless. "Wash you," says He, "make you clean; put away the evil of your doings from before mine eyes." From the squalor, therefore, by which the eye of God is offended, our face is to be washed. For we, with open face beholding as in a glass the glory of the Lord, are changed into the same image. Often also the thought of things necessary belonging to this life wounds and defiles our inner eye; and frequently it makes the heart double, so that in regard to those things in which we seem to act rightly with our fellowmen, we do not act with that heart wherewith the Lord enjoins us; i.e., it is not because we love them, but because we wish to obtain some advantage from…