On Facebook, Christian philosopher Jeremy Pierce commented on a post by (or hosted by) Arminian/Anabaptist NT scholar Scot McKnight:
This is utterly weird. Scot McKnight issues a challenge to a view he keeps calling Calvinism, but it's a particular version of divine command theory that he turns out to be criticizing, not anything to do with Calvinism.
The issues are not tied together in any way. They're about different things. One is about God's relationship with the events that take place in creation. The other is about God's relationship with moral truths. Calvinists hold that God is sovereign over every event that occurs, even our free choices. Divine command theorists hold that God's commands are what make moral truths true. You can be a divine command theorist without being a Calvinist (as John Locke was), and you can be a Calvinist without being a divine command theorist (as Gottfried Leibniz was).
And not even every version of divine command theory would be subject to McKnight's objection. Robert Adams and Bill Alston's versions of divine command theory wouldn't be, since they ground God's commands ultimately in God's nature and not in arbitrary, groundless commands. So it's just a mistake to think that these are arguments that are even about Calvinism, never mind serious criticisms of it.