after the prohibitive אל, יהללוּך [praise thee] easily supplies itself. זר is properly the stranger, as having come from a distance, and נכרי he who comes from an unknown country, and is himself unknown (vid., under Pro 26:24); the idea of both words, however, passes from advena and alienigena to alius. There is certainly in rare cases a praising of oneself, which is authorized because it is demanded (2Co 11:18), which, because it is offered strongly against one's will, will be measured by truth (Pro 10:13); but in general it is improper to applaud oneself, because it is a vain looking at oneself in a glass; it is indecent, because it places others in the shade; imprudent, because it is of no use to us, but only injures, for propria laus sordet, and as Stobäus says, οὐδὲν οὕτως ἄκουσμα φορτικὸν ὡς καθ ̓ αὑτοῦ ἔταινος. Compare the German proverb, “Eigenlob stinkt, Freundes Lob hinkt, fremdes Lob klingt” [= self-praise stinks, a friend's praise is lame, a stranger's praise sounds].
Verse 3
The second pair of proverbs designates two kinds of violent passion as unbearable: 3 The heaviness of a stone, the weight of sand - A fool's wrath is heavier than both.
We do not translate: Gravis est petra et onerosa arena, so that the substantives stand for strengthening the idea, instead of the corresponding adjective (Fleischer, as the lxx, Jerome, Syr., Targum); the two pairs of words stand, as 4a, in genit. relation (cf. on the contrary, Pro 31:30), and it is as if the poet said: represent to thyself the heaviness of a stone and the weight of sand, and thou shalt find that the wrath of a fool compared thereto is still heavier, viz., for him who has to bear it; thus heavier, not for the fool himself (Hitzig, Zöckler, Dächsel), but for others against whom his anger goes forth. A Jewish proverb (vid., Tendlau, No. 901) says, that one knows a man by his wine-glass (כוס), his purse (כיס), and his anger (כעס), viz., how he deports himself in the tumult; and another says that one reads what is in a man ביום כעסו, when he is in an ill-humour. Thus also כעס is to be here understood: the fool in a state of angry, wrathful excitement is so far not master of himself that the worst is to be feared; he sulks and shows hatred, and rages without being appeased; no one can calculate
