Charles H. Spurgeon on Psalms 97:2

Righteousness and judgment, etc. When the mercy and grace of our heavenly King are to be described, he is likened to the sun shining in a clear firmament, and gladdening universal nature with his beneficent ray. But when we are to conceive an idea of him, as going forth, in justice and judgment, to discomfit and punish his adversaries, the imagery is then borrowed from a troubled sky; he is pictured as surrounded by clouds and darkness; from whence issue lightnings and thunders, storms and tempests, fear and confounding the wicked and the impenitent. —Samuel Burder.