God's Utility Function is like a set of rules or guidelines that God follows in order to decide what happens in the world. For example, God may decide that it is important for people to help each other out and be kind to one another, so He might have a rule that says that people should do nice things for others. He might also have another rule that says that people should be honest or that everyone should try their best to make good decisions. By following this Utility Function, God can try to make sure that things happen in a way that will benefit us all.