So, what's all the talk about the Kingdom? Here are some observations concerning it:
1) There is only one Kingdom of God. Jesus repeatedly referred to it as THE Kingdom. It is mentioned 118 times in the Synoptic Gospels, but only three times in the Gospel of John. By the time John wrote his Gospel, the Church was the focus; when the Synoptics were written, the focus was on Israel. The Kingdom is mentioned only thirty-four times in the rest of the New Testament, nearly half in Acts and Revelation. Acts 2:1 is the beginning of the Church Age, and Revelation 4:1 is a picture of the end of it, being a picture of the Rapture
2) Jesus spoke of His Kingdom as being established upon His return (Mt. 24:3, 30; Lk. 22:30; Rev. 19:11 - 20:9).
3) Like the Tribulation, the Millennium is dealing with Israel. Notice that there is again Temple worship and animal sacrifice, only this will be a memorial of what Christ had done over 2000 years earlier (Ezek. 40 - 48).
4) Israel will view Jesus as their King; the Church sees Jesus as our Lord. Just as He was the Passover Lamb during His First Coming, He will be the Lion of the Tribe of Judah at His Second Coming (Jn. 1:29; 1 Cor. 5:7; Rev. 5:5). He will truly be both King of kings and Lord of lords (1 Tim. 6:15; Rev. 19:16)!
During the Church Age, Jesus is far greater than a king; He is Lord!