What exactly is the kingdom of God? We’ve heard it preached many times in church, talked about it in Bible studies, or read about it during our daily devotions. Yet we still may not be able to define it. Let me give you one of the most succinct definitions of the kingdom of God: “The kingdom” is the King’s power over the King’s people in the King’s place.” Patrick Schreiner helps to show us the kingdom of God is really about three things: power, people and place. Specifically, it’s about the King’s rule and authority (power), the citizens of His kingdom (people) and His kingdom (place). All three - power, people and place - are necessary to define the kingdom of God, because if you remove one, then the others no longer stand. To have a kingdom you must have a king to exhibit authority of His people in a specific location. A king must rule His subjects within the bounds of His kingdom. The king’s authority governs His people within His kingdom. The kingdom is about our King’s power (the authority of Jesus), the King’s people (Christians), and the King’s place (where His power and people reside).
The announcement of the kingdom of God was accompanied by an invitation to become a citizen under the rule and reign of Christ. The announcement of the kingdom of God not only proclaims the good news of the gospel but simultaneously calls for those who hear it to respond in faith - to trust in the saving work of Jesus. To be in the kingdom of God means to live under the rule and reign of the King, under His authority. Just as we once lived in the domain of darkness and followed the ways of our flesh and the spirit of disobedience (Ephesians 2: 1-3), now as citizens of the kingdom of God we are to live under the King’s power and for the King’s purposes (Ephesians 2: 4-10). Through the gospel, we not only find the forgiveness of our sins and redemption, but through the mercy of God we have become “God’s people,” the citizens of His kingdom (1 Peter 2: 10). In the Gospels, Christ sets forth what living under the King’s reign looks like for believers here and now, as well as how we wait for His return. Jesus establishes the kingdom of God and instructs His citizens on how to live under His authority. It doesn’t take long to read through any of the Gospels to see how Christ calls us to live as citizens of the kingdom of God. We see how that citizenship impacts every area of life - the way we evangelize the lost, disciple fellow believers, interact with our neighbors, care for our families, live in society, serve God, and minister in our local churches, among many other things.”
Harris, Nathan W. (2024). Gospel Generosity. B&H Publishing Group