The wicked flourish. This seems to be very much out of order; but God, in his providence, sees good sometimes that the worst of men should be exalted; that they may do some work for God, though it be against their will. ... He makes use of the wicked sometimes to protect and shield his church; and sometimes to refine and purify it.
-- from A Body of Divinity by Thomas Watson, p. 85, answering objections to the doctrine of providence (Westminster Shorter Catechism Q11)