I should begin by saying that I'm completely and utterly repelled by Calvinism. I always have been, but more so the older I get. I have plenty of friends and acquaintances who are Calvinists and it doesn't diminish my love or respect for them, I simply do not agree.
One Calvinists figure I particularly disagree with is Jonathan Edwards. His sermon Sinners in the Hands of an Angry God says it all:
"The Wicked must not think, simply because they are not physically in Hell, that God (in Whose hand the Wicked now reside) is not - at this very moment - as angry with them as He is with those miserable creatures He is now tormenting in hell, and who - at this very moment - do feel and bear the fierceness of His wrath."
While, I do believe that Heaven or Hell has already begun on Earth for those who choose them, I certainly don't believe that God is tormenting anyone in Hell. I might also mention that Edwards didn't think very highly of Quakers (as made evident in his Distinguishing Marks). So, MacDonald wrote in an Unspoken Sermon on Justice:
"From all copies of Jonathan Edwards’s portrait of God, however faded by time, however softened by the use of less glaring pigments, I turn with loathing. Not such a God is He concerning whom was the message John heard from Jesus, that He is light, and in Him is no darkness at all."
And there you have it. I fully agree and I also turn with loathing from Jonathan Edwards’s portrait of God, though I don't believe we were ever pointed towards it to begin with.