For the carnal mind can scarcely comprehend how, when acting by their means, he contracts no taint from their impurity, nay, how, in a common operation, he is exempt from all guilt, and can justly condemn his own ministers. Hence a distinction has been invented between doing and permitting because to many it seemed altogether inexplicable how Satan and all the wicked are so under the hand and authority of God, that he directs their malice to whatever end he pleases, and employs their iniquities to execute his Judgments.