In the latest edition of Philosophia Christi[1], Jerry Walls argues that no Christian should be a theological determinist. What is a theological determinist? It’s someone who believes that God’s sovereignty extends meticulously to every aspect of the world, including human “choice.” The problem with determinism is that it eliminates human freedom since there are factors external to humans sufficient to determine our choices, such that we could not do otherwise (or even want to do otherwise since even our desires are the product of God’s sovereign acts).
Most theological determinists are compatibilists. Compatibilists think determinism can be reconciled with free will: If one acts according to their desires, then their choices are free. But this is a veneer. At best this shows that we may feel like we our will is free, even though it is not. The fact remains that both our desires and our choices are determined by God wholly independent of our own volition. It should be no surprise when our desires match our actions when God has determined both. Given theological determinism, there can be no freedom of human will, despite attempts by some to evade the obvious.