The author contends that the doctrine of predestination is the one that exalts God the most, for faith depends on God's eternal choice. The author also faces difficulties with the argument from Pelagians and Arminians that the Calvinistic understanding of predestination makes God the author of sin. The author answers this by ascribing to God abilities and purposes that are beyond human understanding. He argues in the end that the doctrine of predestination ascribes to God the greatest supremacy and glory.