The reproof of life - i. e., The reproof that leads to, or gives life, rather than that which comes from life and its experience.

The ear that heareth the reproof - That receives it gratefully and obeys it. "Advice is for them that will take it," so says one of our own old proverbs; and the meaning here is nearly the same.

The ear that heareth the (i) reproof of life abideth among the wise.
(i) That suffers himself to be admonished by God's word, which brings life: and so amends.

The ear that heareth the reproof of life,.... That is given according to the word of life, in a warm, fervent, and lively manner, with zeal, and in good earnest; which reproves the life of another by his own, as well as by words; and which tends to the spiritual and eternal life of the person reproved; being taken, a man that diligently hearkens to, kindly and cordially receives, and cheerfully obeys such reproof given him,
abideth among the wise; he not only chooseth to be among them, that he may have the advantage of their wise counsels and reproofs, but he becomes wise himself thereby, and attains to the character of a wise man, and is numbered among them; such a man abides in the house of wisdom, the church of God, and attends upon and has conversation with the wise dispensers of the word, and shall have a part with them in the church above, in the kingdom of heaven, where the wise will shine as the firmament; the word here used does not denote a lodging for a night, as it sometimes signifies, but a perpetual abiding.

Faithful, friendly reproofs help spiritual life, and lead to eternal life.

(Compare Proverbs 10:17).
reproof of life--which leads to life.
abideth . . . wise--is numbered among them.

31 An ear which heareth the doctrine of life
Keeps itself in the circle of the wise.
As, Proverbs 6:33, תוכחות מוסר means instructions aiming at discipline, so here תּוכחת חיּים means instructions which have life as their end, i.e., as showing how one may attain unto true life; Hitzig's חכם, for חיים, is a fancy. Is now the meaning this, that the ear which willingly hears and receives such doctrine of life will come to dwell among the wise, i.e., that such an one (for אזן is synecdoche partis pro persona, as Job 29:11) will have his residence among wise men, as being one of them, inter eos sedem firmam habebit iisque annumerabitur (Fl.)? By such a rendering, one is surprised at the harshness of the synecdoche, as well as at the circumstantiality of the expression (cf. Proverbs 13:20, יחכּם). On the contrary, this corresponds with the thought that one who willingly permits to be said to him what he must do and suffer in order that he may be a partaker of life, on this account remains most gladly in the circle of the wise, and there has his appropriate place. The "passing the night" (לין, cogn. ליל, Syr. Targ. בּוּת, Arab. bât) is also frequently elsewhere the designation of prolonged stay, e.g., Isaiah 1:21. בּקרב is here different in signification from that it had in Proverbs 14:23, where it meant "in the heart." In the lxx this proverb is wanting. The other Greek translations have οὖς ἀκοῦον ἐλέγχους χωῆς ἐν μέσῳ σοφῶν αὐλισθήσεται. Similarly the Syr., Targ., Jerome, Venet., and Luther, admitting both renderings, but, since they render in the fut., bringing nearer the idea of prediction (Midrash: זוכה לישׁב בישׁיבת חכמים) than of description of character.

The ear - The man that hearkens to that reproof which leads to life, seeks and delights in the company of the wise.