Psalms 64:9

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 - 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.