Niph. (which as denom. might mean “covered with crime,” Venet. πλημμεληθείς), and, moreover, one that is too weak, for he translates, “a brother is more obstinate then....” Hitzig corrects אחז פּשׁע, to shut up sin = to hold it fettered; but that is not correct Heb. It ought to be עצר, כּבשׁ, or רדות. In 19a the force of the substantival clause lies in the מן (more than, i.e., harder = more difficult to be gained), and in 19b in the כּ; cf. Mic 7:4, where they are interchanged. The parallelism is synonymous: strifes and lawsuits between those who had been friends form as insurmountable a hindrance to their reconciliation, are as difficult to be raised, as the great bars at the gate of a castle (Fl.). The point of comparison is not only the weight of the cross-beam (from ברח, crosswise, across, to go across the field), but also the shutting up of the access. Strife forms a partition wall between such as once stood near each other, and so much thicker the closer they once stood.
With Pro 18:19, the series of proverbs which began with that of the flatterer closes. The catchword אח, which occurred at its commencement, 9b, is repeated at its close, and serves also as a landmark of the group following Pro 18:20-24. The proverb of the breach of friendship and of contentions is followed by one of the reaction of the use of the tongue on the man himself.
With Pro 18:19, the series of proverbs which began with that of the flatterer closes. The catchword אח, which occurred at its commencement, 9b, is repeated at its close, and serves also as a landmark of the group following Pro 18:20-24. The proverb of the breach of friendship and of contentions is followed by one of the reaction of the use of the tongue on the man himself.
Verse 20
Pro 18:20 20 Of the fruit which a man's mouth bringeth is his heart satisfied; By the revenue of his lips is he filled.
He will taste in rich measure of the consequences not merely of the good (Pro 12:14, cf. Pro 13:2), but of whatever he has spoken. This is an oxymoron like Mat 15:11, that not that which goeth into the mouth, but that which cometh out of it, defileth a man. As at Joh 4:34 the conduct of a man, so here his words are called his βρῶμα. Not merely the conduct (Pro 1:31; Isa 3:10), but also the words are fruit-bringing; and not only do others taste of the fruit of the words as of the actions of a man, whether they be good or bad, but above all he himself does so, both in this life and in that which is to come.
Verse 21
Pro 18:21 21 Death and life are in the power of the tongue; And whoever loveth it shall eat its fruit.
The hand, יד, is so common a metaphor for power, that as here a hand is attributed to the tongue, so e.g., Isa 47:14 to the flame, and Psa 49:16 to Hades. Death and life is the great alternative which is placed, Deu 30:15,
