Most people today believe that we live in a closed, mechanistic universe, that is, a universe that functions from day to day according to certain physical forces and causes. Classical Christianity has taken a very different view, teaching that God is the primary cause of the universe, but also that He is the primary cause of everything in the universe and of everything that happens in the universein short, that God, not mechanistic forces, is the primary cause of what is and what happens. In this Crucial Questions booklet, Dr. R.C. Sproul explores and explains the Christian doctrine of providence, the teaching that God is the sovereign ruler of the universe. He then deals with some of the philosophical and theological questions and objections the doctrine raises. His teaching challenges popular assumptions about the universe and exalts God as the sovereign ruler and sustainer of all things.