A Facebook post by Will Duffy, founder of the Collaborators Project on Facebook group God is Open:

In preparing for a Sunday School a few weeks back, I realized that the story of the Tower of Babel is evidence for Open Theism. The Bible states, “And the Lord said, ‘Indeed the people are one and they all have one language, and this is what they begin to do; now nothing that they propose to do will be withheld from them.'”

But wait, isn’t their every action already predetermined? What is there to worry about? If nothing they propose will be withheld from them, their future MUST be open. So what does God do? He makes a change. He actually changes His own design. His original design was one language and one speech on the entire earth. But now that has become problematic. So God changed His original plan and created multiple languages.

God was moved to change His own design due to man’s freedom. This story makes no sense if Calvinism is true..