Complete Commentary on the Whole Bible, by Matthew Henry, at sacred-texts.com
(Job 12:1-5) Job reproves his friends.
(Job 12:6-11) The wicked often prosper.
(Job 12:12-25) Job speaks of the wisdom and power of God.
Job upbraids his friends with the good opinion they had of their own wisdom compared with his. We are apt to call reproofs reproaches, and to think ourselves mocked when advised and admonished; this is our folly; yet here was colour for this charge. He suspected the true cause of their conduct to be, that they despised him who was fallen into poverty. It is the way of the world. Even the just, upright man, if he comes under a cloud, is looked upon with contempt.
Job appeals to facts. The most audacious robbers, oppressors, and impious wretches, often prosper. Yet this is not by fortune or chance; the Lord orders these things. Worldly prosperity is of small value in his sight: he has better things for his children. Job resolves all into the absolute proprietorship which God has in all the creatures. He demands from his friends liberty to judge of what they had said; he appeals to any fair judgment.
This is a noble discourse of Job concerning the wisdom, power, and sovereignty of God, in ordering all the affairs of the children of men, according to the counsel of His own will, which none can resist. It were well if wise and good men, who differ about lesser things, would see how it is for their honour and comfort, and the good of others, to dwell most upon the great things in which they agree. Here are no complaints, or reflections. He gives many instances of God's powerful management of the children of men, overruling all their counsels, and overcoming all their oppositions. Having all strength and wisdom, God knows how to make use, even of those who are foolish and bad; otherwise there is so little wisdom and so little honesty in the world, that all had been in confusion and ruin long ago. These important truths were suited to convince the disputants that they were out of their depth in attempting to assign the Lord's reasons for afflicting Job; his ways are unsearchable, and his judgments past finding out. Let us remark what beautiful illustrations there are in the word of God, confirming his sovereignty, and wisdom in that sovereignty: but the highest and infinitely the most important is, that the Lord Jesus was crucified by the malice of the Jews; and who but the Lord could have known that this one event was the salvation of the world?