Question: If everything that is the case is is so because God willed it to be the case and everything that is willed by God is rightly willed by God, then how can anything be rightly said to be against the will of God and how can we want to change something without going against the will of God?
Response: First of all, note that if everything that is the case is so because God rightly wills it to be so, then our having a desire to change something is also rightly willed by God and is in that sense in accordance with the will of God. Furthermore, even if God rightly wills a state of affairs to be currently actual it does not follow that (1) God rightly wills that state of affairs to be actual at all future moments of time or (2) that God would want that state of affairs to be actual in different circumstances. It is possible that even if something is rightly willed by God to be the case now, it can be rightly said to be against the general will of God and to not be what God wills everywhere, always and under all circumstances (what we might call the universal will of God). If our desire to change some state of affairs s is merely a desire to do something sothat s is no longer actual in the future, it can be easily reconciled with the will of God. The following is clearly possible: God wills s to be actual at t1 and wills that s is not actual at any moment after t1 & We want to do something sothat s is no longer actual at any moment after t1.