Is God the Author of Sin?

In response to my last blog post (we welcome responses!), The Errors of Arminianism, a reader asked me (by email) to answer the Arminian charge that the Reformed faith is guilty of making God the author of sin. I intended to write my own answer to the question: is God the author of sin. But in doing some research I came across this brief and yet thorough treatment of the question by Prof. H. C. Hoeksema (posed to him by a reader of The Standard Bearer). Below is the question and the full...