Charles H. Spurgeon on Psalms 109:6

Set thou a wicked man over him. What worse punishment could a man have? The proud man cannot endure the proud, nor the oppressor brook the rule of another like himself. The righteous in their patience find the rule of the wicked a sore bondage; but those who are full of resentful passions, and haughty aspirations, are slaves indeed when men of their own class have the whip hand of them. For Herod to be ruled by another Herod would be wretchedness enough, and yet what retribution could be more just? What unrighteous man can complain if he finds himself governed by one of like character? What can the wicked expect but that their rulers should be like themselves? Who does not admire the justice of God when he sees fierce Romans ruled by Tiberius and Nero, and Red Republicans governed by Marat and Robespierre? And let Satan stand at his right hand. Should not like come to like? Should not the father of lies stand near his children? Who is a better right hand friend for an adversary of the righteous than the great adversary himself? The curse is an awful one, but it is most natural that it should come to pass: those who serve Satan may expect to have his company, his assistance, his temptations, and at last his doom.