We have a tendency to think of kingdoms in terms of property or geography. For Jesus, the Kingdom of God (or "Kingdom of Heaven" as Matthew often puts it) is not about property or geography. Jesus taught that the Kingdom was about submission to his reign in his disciples' hearts and lives. His goal for them was to be like him in character and obedience. They had to be ready to surrender to him anything that might get in the way of his leadership in their lives. This kind of kingdom requires conquest, but not a conquest of nations or territory. Instead, it is the conquest of hearts. Peter and Andrew left all to follow him. They wanted Jesus to rule their hearts. For us, there are still some fundamental questions regarding the Kingdom and following Christ: "What do I find most difficult to surrender to the Lordship of Christ? Where do I start? What is that one thing that is most difficult?" I must let him have rule over that one area—and ultimately over every area. If I will do this, he may very well give it back to me to use, only now it will be for him, through us, by his power.