Charles H. Spurgeon on Psalms 94:1

O LORD God, to whom vengeance belongeth; 0 God, to whom vengeance belongeth, shew thyself: or, God of retribution, Jehovah, God of retribution, shine forth! A very natural prayer when innocence is trampled down, and wickedness exalted on high. If the execution of justice be a right thing, —and who can deny the fact? —then it must be a very proper thing to desire it; not out of private revenge, in which case a man would hardly dare to appeal to God, but out of sympathy with right, and pity for those who are made wrongfully to suffer, Who can see a nation enslaved, or even an individual downtrodden, without crying to the Lord to arise and vindicate the righteous cause? The toleration of injustice is here attributed to the Lord's being hidden, and it is implied that the bare sight of him will suffice to alarm the tyrants into ceasing their oppressions. God has but to show himself, and the good cause wins the day. He comes, he sees, he conquers! Truly in these evil days we need a manifest display of his power, for the ancient enemies of God and man are again struggling for the mastery, and if they gain it, woe unto the saints of God.