I said, Days should speak - The aged ought to speak. They have had the advantage of long observation of the course of events; they are acquainted with the sentiments of past times; they may have had an opportunity of conversing with distinguished sages, and it is to them that we look up for counsel. This was eminently in accordance with the ancient Oriental views of what is right; and it is a sentiment which accords with what is obviously proper, however little it is regarded in modern times. It is one of the marks of urbanity and true politeness; of the prevalence of good breeding, morals, and piety, and of an advanced state of society, when respect is shown to the sentiments of the aged. They have had the opportunity of long observation. They have conversed much with people. They have seen the results of certain courses of conduct, and they have arrived at a period of life when they can look at the reality of things, and are uninfluenced now by passion. Returning respect for the sentiments of the aged, attention to their counsels, veneration for their persons, and deference for them when they speak, would be an indication of advancement in society in modern times; and there is scarcely anything in which we have deteriorated from the simplicity of the early ages, or in which we fall behind the Oriental world, so much as in the lack of this.

Days should speak - That is, men are to be reputed wise and experienced in proportion to the time they have lived. The Easterns were remarkable for treasuring up wise sayings: indeed, the principal part of their boasted wisdom consisted in proverbs and maxims on different subjects.

I said, Days (e) should speak, and multitude of years should teach wisdom.
(e) Meaning, the ancient, who have experience.

I said, days should speak,.... That is, men of days, of many days, who have lived many days and years in the world: man in common is but of few days, even the most that men arrive to are but few; and some indeed are very few, in comparison of whom others may be said to be men of days, or to have lived many days; and to such it belongs to speak, it is their place, nor should they be prevented or interrupted; it should be allowed them to speak, nor should they be hindered; and it is their duty to speak and instruct juniors, and all that are under them; and it might be reasonably expected, that when they speak it will be to the purpose, and to profit and edification:
and multitude of years should teach wisdom; that is, such over whom many have passed; these it may be thought, having had an opportunity of making their observation on things, and of increasing experience, and of treasuring up a stock of knowledge, they should be very capable of, and indeed the only fit persons to teach others wisdom; either natural wisdom, or the knowledge of natural things; or divine wisdom, the knowledge of God, of his perfections and providences; and inward, spiritual, and evangelical wisdom, which lies in the knowledge of a man's self; in the knowledge of God in Christ; in the knowledge of Christ and of the Gospel of Christ, and the truths of it: this was a sentiment Elihu had entertained of ancient men, and this had restrained him from entering sooner into this debate between Job and his friends; they all being his superiors in age, and, as from thence he judged, in wisdom and knowledge also.

Days--that is, the aged (Job 15:10).