Romans 9 & 10

In these chapters, we clearly see where the title of this series comes in: "The Gospel for a divided world." Chapter 9 shows us the scriptural theme of God's choice by how He has chosen us for adoption and grafted us into the family of God. God wipes away that which divided us and brings us together. 
Chapter 10 can be read and understood as a lament about the "unteachable". Paul speaks to us from his own experience about the effects of zeal without knowledge and righteousness without submission. He brings us back to the driving message that Christ is the culmination of the Law, and everyone who calls on the name of the Lord will be saved.