Christians across denominations and throughout church history widely believe in the sovereignty and grace of God. However we disagree on what these concepts mean in the Bible. This talk focuses on how Reformed people view the priority of these doctrines, as a matters of first importance, according to biblical teaching. How Christians view the sovereignty and grace of God will determine, to a greater extent, how we understand the way in which God rules over every aspect of creation, salvation, providence and human freewill. The talk concludes with a discussion on the implications of these doctrines for Christian living.