Who is he who says, and it comes to pass, when the Lord doesn't command it?
Let us now see how God commands what is wrongly and foolishly done by men. Surely he does not command the ungodly to do what is wicked, for he would thus render them excusable; for where God’s authority interposes, there no blame can be. But God is said to command whatever he has decreed, according to his hidden counsel. There are, then, two kinds of commands; one belongs to doctrine, and the other to the hidden judgments of God. The command of doctrine, so to speak, is an evident approbation which acquits men; for when one obeys God, it is enough that he has God as his authority, though he were condemned by a hundred worlds. Let us, then, learn to be attentive to the commands of doctrine, by which we ought to regulate our life, for they make up the only true rule, from which it is not right to depart. But God is said to command according to his secret decrees what he does not approve, as far as men are concerned. So Shimei had a command to curse, and yet he was not exempt from blame; for it was not his purpose to obey God; nay, he thought that he had offended God no less than David. (2 Samuel 16:5.) Then this distinction ought to be understood, that some things are commanded by God, not that men may have it as a rule of action, but when God executes his secret judgments by ways unknown to us. Thus, then, ought this passage to be understood, even that nothing is carried on without God’s command, that is, without his decree, and, as they say, without his ordination. 