God's story to redeem mankind is a story that spans all of history. If the church hopes to understand its place in obeying the Great Commission now, then we need the history books of the Bible to rightly situate us in time. God is gaining for himself an inheritance of the nations, and the Old Testament faithful did not received what was promised to them because God was insuring that the Gentiles would be adopted into his family. God's faithfulness to save a people for himself should spur us to be faithful to God's call on our lives today.