It is a well know fact that Calvin rejected the language that "something took place by the permission of God, but not also by the will of God." (Institutes, I. XVIII. I) It’s intersting that, after rejecting the language of permission, he cites Augustine using language of permission and takes no issue with him. (Institutes, I. XVIII. III) The WCF 5.4 also seems to reject the same thing. But I also see Reformed theologians using the concept and language of God's permission of sin (example: R.C. Sproul in Chosen by God) Can someone expound on the difference between "bare permission", "permission" and "doing"?