I'll make this short and sweet. The Calvinists contend that God does not ever "change His mind" so to speak, regardless of all the OT passages that show that He does. But here's a conundrum for the Calvinist. The Calvinists and the Confession teach that God determines all things whatsoever come to pass. When confronted with the fact that their theology results in a position that says God doesn't love everybody, the Calvinist resorts to Matthew 5:45, that God sends rain on the just and the unjust, and THAT proves that God shows His love for the lost/unsaved. However, there's a problem here. If God NEVER changes His mind, THEN HOW CAN HE LOVE THE SINNER ONE MOMENT BUT HATE HIM THE NEXT?? Any honest Calvinist (like Arthur Pink) will simply admit that God does not love the sinner. God only loves the elect. Yet in attempting to explain this apparent cruelty to an unbeliever, they will give the above example of the rain on the just and unjust as evidence that there is at least one point where God shows His love for them. But, IF GOD NEVER CHANGES HIS MIND, THEN HIS HATRED FOR THE SINNER WOULD BE CONSTANT AND CONSISTENT. So the Calvinists can either admit that there are times when God changes something according to plan that He previously said otherwise (as in 1 Samuel 23:11-14) or the Calvinists should just all be honest and tell sinners that God doesn't love them. But of course, if they did that, they would lose membership and followers, so a Calvinist MUST maintain a dishonest presentation of the gospel in order to maintain credibility.