Psalms 2:4

After David has told us of the tumult and commotions, the counsels and pride, the preparation and resources the strength and efforts of his enemies, in opposition to all these he places the power of God alone, which he concludes would be brought to bear against them, from their attempting to frustrate his decree. And, as a little before, by terming them kings of the earth, he expressed their feeble and perishable condition; so now, by the lofty title of He that dwelleth in heaven, he extols the power of God, as if he had said, that power remains intact and unimpaired, whatever men may attempt against it. Let them exalt themselves as they may, they shall never be able to reach to heaven; yea, while they think to confound heaven and earth together, they resemble so many grasshoppers, and the Lord, meanwhile, undisturbed beholds from on high their infatuated evolutions. And David ascribes laughter to God on two accounts; first, to teach us that he does not stand in need of great armies to repress the rebellion of wicked men, as if this were an arduous and difficult matter, but, on the contrary, could do this as often as he pleases with the most perfect ease. In the second place, he would have us to understand that when God permits the reign of his Son to be troubled, he does not cease from interfering because he is employed elsewhere, or unable to afford assistance, or because he is neglectful of the honor of his Son; but he purposely delays the inflictions of his wrath to the proper time, namely, until he has exposed their infatuated rage to general derision. Let us, therefore, assure ourselves that if God does not immediately stretch forth his hand against the ungodly, it is now his time of laughter; and although, in the meantime, we ought to weep, yet let us assuage the bitterness of our grief, yea, and wipe away our tears, with this reflection, that God does not connive at the wickedness of his enemies, as if from indolence or feebleness, but because for the time he would confront their insolence with quiet contempt. By the adverb then, he points to the fit time for exercising judgment, as if he had said, after the Lord shall have for a time apparently taken no notice of the malpractices of those who oppose the rule of his Son, he will suddenly change his course, and show that he retards nothing with greater abhorrence than such presumption.