Keil & Delitzsch, on Prov 20:1

This proverb warns against the debauchery with which free-thinking is intimately associated. Wine is a mocker, mead boisterous; And no one who is overtaken thereby is wise. The article stands with יין. Ewald maintains that in 10:1-22:6 the article occurs only here and at Pro 21:31, and that it is here, as the lxx shows, not original. Both statements are incorrect. The article is found, e.g., at Pro 19:6; Pro 18:18, Pro 18:17, and here the personification of "wine" requires it; but that it is wanting to שׁכר shows how little poetry delights in it; it stands once for twice. The effects of wine and mead (שׁכר from שׁכר, to stop, obstruct, become stupid) are attributed to these liquors themselves as their property. Wine is a mocker, because he who is intoxicated with it readily scoffs at that which is holy; mead is boisterous (cf. הומיּה, Pro 7:11), because he who is inebriated in his dissolute madness breaks through the limits of morality and propriety. He is unwise who, through wine and the like, i.e., overpowered by it (cf. Sa2 13:28), staggers, i.e., he gives himself up to wine to such a degree that he is no longer master of himself. At Pro 5:19 we read, שׁגה ב, of the intoxication of love; here, as at Isa 28:7, of the intoxication of wine, i.e., of the passionate slavish desire of wine or for wine. The word "Erpicht" [avidissimus], i.e., being indissolubly bound to a thing, corresponds at least in some degree to the idea. Fleischer compares the French: tre fou de quelque chose. Isa 28:7, however, shows that one has to think on actual staggering, being overtaken in wine.