(2) Should a wise man utter vain knowledge . . .—Job therefore is not wise, and his words have been vain and windy.

Job 15:2. Should a wise man — Such as thou pretendest to be, utter vain knowledge — Hebrews דעת רוח, dagnath, ruach, knowledge of wind; that is, empty words, without any sense or solidity in them; and fill his belly — Satisfy his mind and conscience; with the east wind — With notions and speeches, which are not only unsubstantial and unprofitable, but also hasty, impetuous, and pernicious; and full as hurtful to the peace of his own mind, and the quiet and comfort of others, as the boisterous, scorching east wind is to fruits and herbs of every kind. The Hebrew is literally, And should the east wind fill his belly — his vain and useless knowledge puff him up with pride and self-conceit?

15:1-16 Eliphaz begins a second attack upon Job, instead of being softened by his complaints. He unjustly charges Job with casting off the fear of God, and all regard to him, and restraining prayer. See in what religion is summed up, fearing God, and praying to him; the former the most needful principle, the latter the most needful practice. Eliphaz charges Job with self-conceit. He charges him with contempt of the counsels and comforts given him by his friends. We are apt to think that which we ourselves say is important, when others, with reason, think little of it. He charges him with opposition to God. Eliphaz ought not to have put harsh constructions upon the words of one well known for piety, and now in temptation. It is plain that these disputants were deeply convinced of the doctrine of original sin, and the total depravity of human nature. Shall we not admire the patience of God in bearing with us? and still more his love to us in the redemption of Christ Jesus his beloved Son?Should a wise man - Referring to Job, and to his claims to be esteemed wise; see Job 12:3; Job 13:2, Job 13:6. The argument of Eliphaz here is, that the sentiments which Job had advanced were a sufficient refutation of his pretensions to wisdom. A wise man would not be guilty of "mere talk," or of using language that conveyed no ideas.

Utter - literally, answer. It refers to the replies which Job had made to the arguments of his friends.

Vain knowledge - Margin, "Knowledge of wind." So the Hebrew; see Job 6:26; Job 7:7. The "wind" is used to denote what is unsubstantial, vain, changing. Here it is used as an emblem of remarks which were vain, empty, and irrelevant.

And fill his belly - Fill his mind with unsubstantial arguments or sentiments - as little fitted for utility as the east wind is for food. The image is, "he fills himself with mere wind, and then blows it out under pretence of delivering the maxims of wisdom."

With the east wind - The east wind was not only tempestuous and vehement, but sultry, and destructive to vegetation. It passed over vast deserts, and was characterized by great dryness and heat. It is used here to denote a manner of discourse that had in it nothing profitable.

2. a wise man—which Job claims to be.

vain knowledge—Hebrew, "windy knowledge"; literally, "of wind" (Job 8:2). In Ec 1:14, Hebrew, "to catch wind," expresses to strive for what is vain.

east wind—stronger than the previous "wind," for in that region the east wind is the most destructive of winds (Isa 27:8). Thus here,—empty violence.

belly—the inward parts, the breast (Pr 18:8).

A wise man; such as thou seemest and pretendest to be.

Vain knowledge, i.e. empty words, without any sense or solidity in them.

Fill his belly, i.e. satisfy his own mind and conscience, which being secret is compared to the inwards of the belly; as Job 32:19 Proverbs 20:27 22:18.

With the east wind, i.e. with discourses which are not only flashy and unprofitable, and without any weight, but also boisterous and pernicious, both to himself and others; as the east wind was in those parts, Genesis 41:6 Exodus 10:13 Hosea 12:1.

Should a wise man utter vain knowledge,.... As Job had been thought to be, or as he himself thought he was, which he might say sarcastically; or as he really was, not worldly wise, nor merely wise in things natural, but in things divine; being one that had the fear of God, which is the beginning of wisdom, and wisdom itself; believed in Christ, and walked wisely and circumspectly before men; now it is not becoming such a man to utter vain knowledge, or such knowledge as is like the wind, or, as the Targum, windy knowledge; empty, not solid, nor satisfying, but swells and puffs up, and is knowledge falsely so called; but it does not appear that Job did utter such vain and fruitless things as deserved to be compared to the wind:

and fill his belly with the east wind; which is noisy and blusterous, rapid and forcible, bearing all before it, and very infectious in hot countries; and such notions Job, according to Eliphaz, satisfied himself with, and endeavoured to insinuate them into others; which were nothing but great swelling words of vanity, and tended to subvert the faith of men, and overthrow all religion, and were very unwholesome, infectious, and ruinous to the minds of men, as suggested.

Should a wise man utter {a} vain knowledge, and fill his belly {b} with the east wind?

(a) That is, vain words, and without consolation?

(b) Meaning, with matters that are of no importance, which are forgotten as soon as they are uttered, as the East wind dries up moisture as soon as it falls.