Here are some edited comments, short but sweet, from a member of our private discussion group:
The following quote is by RC Sproul, SR.
“Every sin is an act of cosmic treason, a futile attempt to dethrone God in His sovereign authority.”
No matter how long I’ve been involved in the A vs. C debate, I absolutely cannot reconcile in my mind how God ISN’T the author of sin if Calvinism is true given Calvinism’s doctrine of exhaustive divine determinism.
In turn, this quote by Sproul would be false if Calvinism is true, since our sins would reinforce God’s sovereignty.