Proverbs 27:17

a man sharpeneth . . . friend--that is, conversation promotes intelligence, which the face exhibits.

As in water face answereth to face,.... As water is as a looking glass, in which a man may behold his own face and another's; or as the face in the water answers to the face of a man, and there is a great likeness between them. All things through water appear greater, as Seneca (m) observes, and so more clear and plain; so the heart of man to man; one man's heart may be seen and discerned in some measure by another, as by his countenance; for though, as the poet (n) says, "frontis nulla fides", yet the countenance is often the index of the mind, though not an infallible one; wrath and anger in the breast may be seen in the face, as were in Cain's; thus Jacob saw some resentment at him in the mind of Laban, and judged he had some design of mischief against him by the change of his countenance; also what is in the heart of man is discerned by what comes out of it, by his words, and also by his actions; yea, a man may know in a good measure what is in another man's heart, by what he finds in his own: the word of God is a glass, or medium of vision, and like water, in which a man's face is seen, through which a man sees his own heart; the law is a glass, in which an enlightened person sees not only the perfections of God, the nature of righteousness, but also his sin, and the sinfulness of it; this glass mother magnifies nor multiplies his sins, but sets them in a true light before him, by which he discerns heart sins, and sees and knows the plague of his heart; and the Gospel is a glass, wherein he beholds the glory of Christ, sees and can discern whether Christ is formed in him, and he has the grace of the Spirit of God wrought in his soul, as faith, hope, love, repentance, humility, self-denial, &c. moreover, as the face seen in the water is similar to a man's face, so t…

This proverb expresses the influence arising from the intercourse of man with man: Iron is sharpened by iron, And a man may sharpen the appearance of another. When the Masora reads יחד, Ewald remarks, it interprets the word as denoting "at the same time," and the further meaning of the proverb must then accord therewith. Accordingly he translates: "iron together with iron! and one together with the face of another!" But then the prep. ב or עם is wanting after the second יחד - for יחד is, in spite of Ewald, 217h, never a prep. - and the "face," 17b, would be a perplexing superfluity. Hitzig already replies, but without doing homage to the traditional text-punctuation, that such a violence to the use of language, and such a darkening of the thought, is not at all to be accepted. He suggests four ways of interpreting יחד: (1) the adverb יחד, united, properly (taken accusat.) union; (2) יחד, Psa 86:11, imper. of the Piel יחד, unite; (3) יחדּ, Job 3:6, jussive of the Kal חדה, gaudeat; and (4) as Kimchi, in Michlol 126a, jussive of the Kal חדה (= חדד) acuere, after the form תחז, Mic 4:11. ויּחץ, Gen 32:8, etc. in p. יחד, after the form אחז, Job 23:9. ויּחל, Kg2 1:2 (= ויּחלא, Ch2 16:12). If we take יחד with בּרזל, then it is priori to be supposed that in יחד the idea of sharpening lies; in the Arab. iron is simply called hadyda = חדוּד, that which is sharpened, sharp; and a current Arab. proverb says: alḥadyd balḥadyd yuflah = ferrum ferro diffinditur (vid., Freytag under the word falah). But is the traditional text-punctuation thus understood to be rightly maintained? It may be easily changed in conformity with the meaning, but not so that with Bttcher we read יחד and יחד, the fut. Kal of חדד: "iron sharpeneth itself on iron, and a man sharpeneth himself over against his n…

This intimates both the pleasure and the advantage of conversation. One man is nobody; nor will poring upon a book in a corner accomplish a man as the reading and studying of men will. Wise and profitable discourse sharpens men's wits; and those that have ever so much knowledge may by conference have something added to them. It sharpens men's looks, and, by cheering the spirits, puts a briskness and liveliness into the countenance, and gives a man such an air as shows he is pleased himself and makes him pleasing to those about him. Good men's graces are sharpened by converse with those that are good, and bad men's lusts and passions are sharpened by converse with those that are bad, as iron is sharpened by its like, especially by the file. Men are filed, made smooth, and bright, and fit for business (who were rough, and dull, and inactive), by conversation. This is designed, 1. To recommend to us this expedient for sharpening ourselves, but with a caution to take heed whom we choose to converse with, because the influence upon us is so great either for the better or for the worse. 2. To direct us what we must have in our eye in conversation, namely to improve both others and ourselves, not to pass away time or banter one another, but to provoke one another to love and to good works and so to make one another wiser and better.

27:17 iron sharpens iron: Wisdom comes from interaction, often critical, with a good friend (see 27:6, 9).