As believers, the greatest gift that has been given to us is the free gift of salvation. Therefore, we should study God’s Word to see what He has to say about this amazing gift. In theology, the study of salvation is called soteriology. In Reformed Theology, there is a basic framework of God’s plan for saving sinners called the doctrines of grace. This framework is made up of five doctrines that are also known as Calvinism. These doctrines, as we will see, were not made up by John Calvin, but come directly from the Word of God. In this study, we will discover what the five doctrines are, how they were developed into a system, and give a biblical defense for these cherished truths.