Prov 20:20

“Here is, 1. An undutiful child become very wicked by degrees. He began with despising his father and mother, slighting their instructions, disobeying their commands, and raging at their rebukes, but at length he arrives at such a pitch of impudence and impiety as to curse them, to give them scurrilous and opprobrious language, and to wish mischief to those that were instruments of his being and have taken so much care and pains about him, and this in defiance of God and his law, which had made this a capital crime (Exo 21:17, Mat 15:4), and in violation of all the bonds of duty, natural affection, and gratitude. 2. An undutiful child become very miserable at last: His lamp shall be put out in obscure darkness; all his honour shall be laid in the dust, and he shall for ever lose his reputation. Let him never expect any peace or comfort in his own mind, no, nor to prosper in this world. His days shall be shortened, and the lamp of his life extinguished, according to the reverse of the promise of the fifth commandment. His family shall be cut off and his posterity be a curse to him. And it will be his eternal ruin; the lamp of his happiness shall be put out in the blackness of darkness (so the word is), even that which is for ever, Jde 1:13, Mat 22:13.”

“Whoso curseth his father or his mother,.... This is dreadful indeed! a person must be got to a great pitch of wickedness to do this; to curse his parents, one or other of them, that have been the instruments of his being, and by whom he has been brought up and put out into the world; to slight them, despise them, and mock at them, is highly base and criminal, but to curse them is shocking! what can such expect but the curse of God upon them? his lamp shall be put out in obscure darkness; he shall be deprived of his natural sight; see Pro 30:17; or the very light of nature shall be extinct in him; and indeed such an one acts as if not guided by it, nor under its influence; or whatsoever favour from the Lord he has enjoyed, it shall be taken from him; his lamp or candle of outward felicity shall be quenched, and burn no longer; see Job 18:5; or his soul, the candle of the Lord, in him, Pro 20:27; shall be removed; or he "shall die", not only a corporeal but an eternal death; see Exo 21:17; "blackness of darkness" (h) as the words may be rendered, are reserved for him in the world to come, and which will be his portion, Jde 1:13. (h) "in obscuritate tenebrarum", Pagninus, Mercerus; "in nigredine tenebrarum", Michaelis.”

“The following group begins, for once more the aim of this older Book of Proverbs becomes prominent, with an inculcation of the fourth (Note: i.e., The fifth according to the arrangement of the Westminster Confession.) commandment. 20 He that curseth his father and his mother, His light is extinguished in midnight darkness. The divine law, Exo 21:17; Lev 20:9, condemns such an one to death. But the proverb does not mean this sentence against the criminal, which may only seldom be carried into execution, but the fearful end which, because of the righteousness of God ruling in history, terminates the life of such an unnatural son (Pro 30:17). Of the godless, it has already been said that their light is extinguished, Pro 13:9, there is suddenly an end to all that brightened, i.e., made happy and embellished their life; but he who acts wickedly (קלּל, R. קל, levem esse, synon. הקלה, Deu 27:16), even to the cursing of his father and mother, will see himself surrounded by midnight darkness (Symmachus, σκοτομήνῃ, moonless night), not: he will see himself in the greatest need, forsaken by divine protection (Fleischer), for Jansen rightly: Lux et lucerna in scripturis et vitae claritatem et posteritatem et prosperitatem significat. The apple of the eye, אישׁון, of darkness (vid., Pro 7:9), is that which forms the centre of centralization of darkness. The Syr. renders it correctly by bobtho, pupil of the eye, but the Targ. retains the אשׁוּן of the Kerı̂, and renders it in Aram. by אתוּן, which Rashi regards as an infin., Parchon as a particip. after the form ערוּך; but it may be also an infin. substantive after the form עזוּז, and is certainly nothing else than the abbreviated and vocally obscured אישׁון. For the Talm. אשׁן, to be hard, furnishes no suitable idea; and the same holds true of אשׁוּני, times, Lev 15:25 of the Jerusalem Targ.; while the same abbreviation and the same passing over of o into u represents this as the inflected אישׁון (= עת). There is also no evidence for a verb אשׁן, to be black, dark; the author of Aruch interprets אשׁונא, Bereschith Rabba, c. 33, with reference to the passage before us, of a dark bathing apartment, but only tentatively, and אישׁון is there quoted as the Targ. of צל, Gen 19:8, which the text lying before us does not ratify. Ishon means the little man (in the eye), and neither the blackness (Buxtorf and others) nor the point of strength, the central point (Levy) of the eye. (Note: Vid., Fleischer in Levy's Chald. Wrterbuch, i. 419.)”