And all men shall see, and shall declare the work of God. He insists more fully upon the good effects which would result from the judgment executed in leading such as had formerly overlooked a Divine Providence altogether, to catch a spirit of inquiry from the singularity of the spectacle; and acquaint themselves with, and speak one to another of a subject hitherto entirely new to them. He intimates, that the knowledge of what God had so signally wrought would extend far and wide -- for he says, all men, etc. The Hebrew verb skl, shachal, employed, admits either of the neuter signification, they shall understand, or of the active, they shall cause others to understand. But as it is usual with David to repeat the same thing twice, perhaps the latter or transitive sense is preferable. Another desirable consequence which would flow from the deliverance granted is mentioned in the last verse, that it would afford matter of joy, hope, and holy triumph to the saints, who would be confirmed in expecting the same help from God which he had extended to his servant David. Those formerly called the righteous are now styled the upright in heart, to teach us, that the only righteousness which proves acceptable is that which proceeds from inward sincerity. This truth I have insisted upon at large elsewhere.

And all men shall fear - That is, a deep impression would be made, not only on the associates and companions of the wicked, but on all that should hear of what was done. People, in view of the just punishment of the wicked, would learn to reverence God, and to stand in awe of One so powerful and so just. Judgments, punishment, wrath, are adapted and designed to make a deep impression on mankind. On this principle, the final punishment of the wicked will make a deep and salutary impression on the universe forever.
And shall declare the work of God - Shall make it known to others. It will become a subject of conversation, or they will talk about it, as illustrating the divine perfections and character. Such should always be the effect of the judgments of God, for they illustrate his true character; they make known his attributes; they convey to the world lessons of the utmost importance. Nothing is more proper than to talk about the judgments of God, and to endeavor to derive from them the instructions which they are adapted to convey about the divine nature, and the principles of the administration under which the universe is placed. Wars, pestilences, famines, earthquakes, conflagrations, inundations, diseases, all teach important lessons about God; and each one bears its own special message to mankind.
For they shall wisely consider of his doing - They shall attentively and carefully consider it; they shall endeavor to derive such lessons from his dealings as they are suited to convey. In other words, an attentive consideration of his doings will contribute to maintain a just knowledge of world in subjection to him. God is thus always speaking to human beings; and nothing is more proper for human beings than to give their minds to a careful consideration of what is really intended to be taught us by the events which are occurring in his providential dealings.

And all men shall fear - They endeavored to hide their mischief; but God shall so punish them that all shall see it, and shall acknowledge in their chastisement the just judgment of God. The wicked, in consequence, shall fear, and,

And all men shall fear,.... Either God himself, or his judgments: they shall be frightened at them, learn righteousness by them, worship God, and give glory to him; they shall fear him as King of saints, his judgments being made manifest; not with a slavish fear, but with reverence and godly fear; see Revelation 11:13;
and shall declare the work of God; the punishments inflicted on wicked men; his work of justice and judgment, which is his work, his strange work; for there is no evil of punishment but the Lord has done it, Isaiah 28:21;
for they shall wisely consider of his doings; consider that it is done by him, and done well and wisely, after the counsel of his own will; and so consider it as to be admonished, and take warning and caution by it. This is the use men in general should make of such dispensations of Providence; the use the righteous in particular make of them follows:

Men, generally, will acknowledge God's work, and the righteous, rejoicing in it, shall be encouraged to trust Him (Psalm 58:10).