Any kingdom of the world is incompatible with the kingdom of God. When Christians fuse the sword and the cross we just become another version of a kingdom of the world. In an ardent sermon that resulted in losing over 1000 members of his congregation in 2004 Woodland Hills (St. Paul, MN) pastor Greg Boyd says the defining maker of the kingdom of God is that it looks like Jesus. Therefore the distinct marker of a disciple of the kingdom of God is Calvary-like love (Eph. 5:1-2, Lk 14:27).
