A Futurist Can't Say That God's Kingdom, New Jerusalem, Has Been Established

Nor can a Futurist say that the resurrection of the saints has taken place yet.  Therefore, according to their theology, ALL of the Saints, from Adam to John the Baptist and the Apostles to those believers in these times... ALL of them are still in the grave, Sheol, awaiting to be released.

According to their theology, the judgment of the twelve tribes of Israel is still in the future which means Jesus' prophecy in Matthew 19:28-
"And Jesus said unto them, Verily I say unto you, That ye which have followed me, in the regeneration when the Son of man shall sit in the throne of his glory, ye also shall sit upon twelve thrones, judging the twelve tribes of Israel."...
has not taken place yet.  (Jesus' 2nd Coming is in judgment of Israel (the twelve tribes), NOT in the judgment of the entire globe like Futurists have been led to believe.)

And, accordingly, God's Kingdom, New Jerusalem, therefore, has not been established yet and the 'Mystery of God' which was understood by the Apostles and was to be fulfilled during their generation, has not been fulfilled.

I believe wholeheartedly that ALL Biblical prophecy has been fulfilled.  Why? Because Jesus and the Apostles said so.

Just these verses from Revelation alone have me convinced of it:

Revelation 1:1  The Revelation of Jesus Christ, which God gave unto him, to shew unto his servants things which must shortly come to pass...
Revelation 1:3  Blessed is he that readeth, and they that hear the words of this prophecy, and keep those things which are written therein: for the time is at hand.
Revelation 22:6  And he said unto me, These sayings are faithful and true: and the Lord God of the holy prophets sent his angel to shew unto his servants the things which must shortly be done.
Revelation 22:7  Behold, I come quickly: blessed is he that keepeth the sayings of the prophecy of this book.
Revelation 22:10  And he saith unto me, Seal not the sayings of the prophecy of this book: for the time is at hand.
Revelation 22:12  And, behold, I come quickly; and my reward is with me, to give every man according as his work shall be.
Revelation 22:14  Blessed are they that do his commandments, that they may have right to the tree of life, and may enter in through the gates into the city*. (New Jerusalem)
Revelation 22:20  He which testifieth these things saith, Surely I come quickly. Amen. Even so, come, Lord Jesus.