A theme that overshadows and encompasses all else in the Bible is the phrase “the kingdom of God.” The New Testament is very explicit and emphatic about it. John the Baptist came preaching, saying, “the kingdom of heaven is at hand” (Matt. 3:1-2). Jesus taught it and preached it (Matt. 4:17). After His resurrection, He spoke of it with His disciples (Acts 1:3).
This was also the theme of the Apostles’ teachings. Paul preached and taught it to the end of his life. To the very end, he spoke about the kingdom of God and the things of Jesus Christ (Acts 28:31). The letter to the Hebrews can be summed up in one phrase: “Therefore, since we are receiving a kingdom which cannot be shaken…” (12:28). And finally, the Book of Revelation can be summarized in one statement:“Now… the kingdom of our God… have come” (12:10).