Well, if you ask a typical Baptist who is opposed Calvinism, he or she might say it is heresy, but the statement is usually not well-informed. But I did not know that Orthodoxy considers Calvinism as a heresy (or at least parts of it). At the Orthodox blog “Glory to God for All Things,” Father Stephen has a post titled, “Calvinism As Heresy.” The post provides the substance of Chapter VI. of Acts and Decrees of the Synod of Jerusalem (A.D. 1672). Be sure to read some of the comments (which number over 100). At the heart of the problem is whether God created evil, a most troubling issue indeed.