The LORD is slow to anger, and great in power, and will not at all acquit the wicked: the LORD hath his way in the whirlwind and in the storm, and the clouds are the dust of his feet. The Lord is slow to anger - He exercises much longsuffering towards his enemies, that this may lead them to repentance. And it is because of this longsuffering that vengeance is not speedily executed on every evil work.
Great in power - Able at all times to save or to destroy.
The Lord hath his way in the whirlwind and in the storm - These are the effects of his power; and when they appear unusual, they may be considered as the immediate effects of his power: and although he be in them to punish and destroy, he is in them to direct their course, to determine their operations, and to defend his followers from being injured by their violence. The pestilential wind which slew one hundred and eighty-five thousand of the Assyrians did not injure one Israelite. See 2 Kings 19:35.
The clouds are the dust of his feet - This is spoken in allusion to a chariot and horses going on with extreme rapidity: they are all enveloped in a cloud of dust. So Jehovah is represented as coming through the circuit of the heavens as rapidly as lightning; the clouds surrounding him as the dust does the chariot and horses.