Ruling with Christ–How and Why? (Feast of Tabernacles 2019)

How can we be sure that we will be in the Kingdom of God and rule with and under Christ? How could God be so sure that David or Abraham would make it into the Kingdom? Why was God totally convinced and knew that Christ would never sin, when He was here on earth as a human being? How does God know what will happen in the future? And why should we look forward to our rule over others in the Kingdom? What are some of God’s promises for us and others?