Whosoever is wise, so as to observe these things. We are now informed that men begin to be wise when they turn their whole attention to the contemplation of the works of God, and that all others besides are fools. For however much they may pique themselves upon their superior acuteness and subtilty, all this is of no avail so long as they shut their eyes against the light which is presented to them. In employing this interrogatory form of address, he indirectly adverts to that false persuasion which prevails in the world, at the very time when the most daring heaven-despiser esteems himself to be the wisest of men; as if he should say, that all those who do not properly observe the providence of God, will be found to be nothing but fools. This caution is the more necessary, since we find that some of the greatest of philosophers were so mischievous as to devote their talents to obscure and conceal the providence of God, and, entirely overlooking his agency, ascribed all to secondary causes. At the head of these was Aristotle, a man of genius and learning; but being a heathen, whose heart was perverse and depraved, it was his constant aim to entangle and perplex God's overruling providence by a variety of wild speculations; so much so, that it may with too much truth be said, that he employed his naturally acute powers of mind to extinguish all light. Besides, the prophet not only condemns the insensate Epicureans, whose insensibility was of the basest character, but he also informs us that a blindness, still greater and more detestable, was to be found among these great philosophers themselves. By the term, observe, he informs us, that the bare apprehension of the works of God is not enough, -- they must be carefully considered in order that the knowledge of them may be deliberately and maturely digested. And, therefore, that it may be engraven upon our hearts, we must make these works the theme of our attentive and constant meditation. When the prophet says, Whosoever is wise, even they shall understand, the change of the singular into the plural number is beautifully appropriate. By the one he tacitly complains of the fewness of those who observe the judgments of God; as if he should say, How seldom do we meet with a person who truly and attentively considers the works of God! Then he adverts to the fact of their being so visibly before all, that it is impossible that men could overlook them, were it not that their minds are perverted by their own wickedness. And if any person be disposed to inquire how it comes to pass that the prophet, after treating of the judgments and severity of God, now makes mention of his loving-kindness, I answer, that his loving-kindness shines most conspicuously, and occupies a very prominent place in all that he does; for he is naturally prone to loving-kindness, by which also he draws us to himself.

Whoso is wise - All who are truly wise. That is, all who have a proper understanding of things, or who are disposed to look at them aright.
And will observe these things - Will attentively consider them; will reason upon them correctly; will draw just conclusions from them; will allow them to produce their "proper" impression on the mind. The meaning is, that these things would not be understood at a glance, or by a hasty and cursory observation, but that all who would take time to study them would see in them such proofs of wisdom and goodness that they could not fail to come to the conclusion that God is worthy of confidence and love.
Even they shall understand the lovingkindness of the Lord - They will perceive that God is a merciful Being; that he seeks the welfare of the universe; that he desires the good of all; that the whole system is so arranged as to be adapted to secure the greatest good in the universe. No one can study the works of God, or mark the events of his providence, without perceiving that there are "innumerable" arrangements which have no other end than to produce happiness; which can be explained only on the supposition that God is a benevolent Being; which would not exist under the government of a malevolent being. And, although there are things which seem to be arrangements to cause suffering, and although sin and misery have been allowed to come into the world, yet we are not in circumstances to enable us to show that, in some way, these may not be consistent with a desire to promote the happiness of the universe, or that there may not be some explanation, at prosent too high for us, which will show that the principle of benevolence is applicable to all the works of God. Meantime, where we can - as we can in numberless cases - see the proofs of benevolence, let us praise God; where we cannot, let us silently trust him, and believe that there will yet be some way in which we may see this as the angels now see it, and, like them, praise him for what now seems to us to be dark and incomprehensible. There is an "eternity" before us in which to study the works of God, and it would not be strange if in that eternity we may learn things about God which we cannot understand now, or if in that eternity things now to us as dark as midnight may be made clear as noonday. How many things incomprehensible to us in childhood, become clear in riper years!

Whoso is wise - That is, He that is wise, he that fears God, and regards the operation of his hand will observe - lay up and keep, these things. He will hide them in his heart, that he sin not against Jehovah. He will encourage himself in the Lord, because he finds that he is a never-failing spring of goodness to the righteous.
They shall understand the lovinq-kindness of the Lord - חסדי יהוה chasdey Yehovah, the exuberant goodness of Jehovah. This is his peculiar and most prominent characteristic among men; for "judgment is his strange work." What a wonderful discourse on Divine Providence, and God's management of the world, does this inimitable Psalm contain! The ignorant cannot read it without profit; and by the study of it, the wise man will become yet wiser.

Whoso is wise,.... Or as it may be read interrogatively, "who is wise?" as in Jeremiah 9:12, that is, spiritually wise, wise unto salvation; who is made to know wisdom in the hidden part; for not such as are possessed of natural wisdom, or worldly wise men, much less who are wise to do evil, are here meant.
And will observe these things; the remarkable appearances of divine Providence to persons in distress; the various changes and vicissitudes in the world; the several afflictions of God's people, and their deliverances out of them; the wonderful works of God in nature, providence, and grace; these will be observed, taken notice of, laid up in the mind, and kept by such who are truly wise, who know how to make a right use and proper improvement of them.
Even they shall understand the lovingkindness of the Lord; everyone of the wise men; they will perceive the kindness of God unto all men, in the several dispensations of his providence towards them, and his special love and kindness towards his own people, even in all their afflictions; they will perceive this to be at the bottom of every mercy and blessing; they will understand more of the nature and excellency of it, and know more of the love of God and Christ, which passeth knowledge. Or "the kindnesses of the Lord shall be understood": that is, by wise men; so R. Moses in Aben Ezra renders the words.