By definition theology is the study of God, but normally we use the word to speak of all biblical truths or doctrines. Theology Proper is a term used to describe the study of God Himself. As A. W. Tozer wrote: “What comes into our minds when we think about God is the most important thing about us.” In this booklet we will briefly investigate unbiblical ideas about the existence of God and then turn to the scriptural teachings which detail His nature and attributes. Trinitarianism, including historic denials of the doctrine of the Trinity, will be considered, as will the unity and diversity within the Godhead. The important issue of creation will be examined, and a careful examination of the tension surrounding the sovereignty of God and the responsibility of mankind.