Charles H. Spurgeon on Psalms 94:3

LORD, how long shall the wicked, how long shall the wicked triumph? Shall wrong for ever rule? Are slavery, robbery, tyranny, never to cease? Since there is certainly a just God in heaven, armed with almighty power, surely there must be sooner or later an end to the ascendancy of evil, innocence must one day find a defender. This "how long?" of the text is the bitter complaint of all the righteous in all ages, and expresses wonder caused by that great enigma of providence, the existence and predominance of evil. The sound "how long?" is very akin to howling, as if it were one of the saddest of all the utterances in which misery bemoans itself. Many a time has this bitter complaint been heard in the dungeons of the Inquisition, at the whipping posts of slavery, and in the prisons of oppression. In due time God will publish his reply, but the full end is not yet.