Hey, Josh!
The Gospel of the Kingdom was preached by Yeshua from the beginning, and to receive the Kingdom, you have to go through Yeshua.
Many people do not realize how tangible the idea of Yeshua coming to rule in glory was to the Jews who became believers. From the beginning, the Kingdom, on earth, and the Messiah ruling with an iron fist, with each of the Tribes in their assigned areas, and other nations and ethnos coming to Jerusalem to worship Yeshua.
However, when the Greeks got hold of some of the descriptions of that Kingdom, it got a bit esoteric, if not outright foolish, and even twisted in the beginning. And then the Catholic Church and Eastern Churches added more error, and some part of the Kingdom teaching got lost, or misinterpreted.
Many people who believe sincerely in haMessiach seem to believe that Adonai did not mean what He said about the Kingdom, or that it's part of the 'Old' Covenant, as if it is not any part of the 'New' Covenant.
Then you get more and more error added in with Dominionism, that makes it seem as if we poor muddled fools that YHVH loves are supposed to do all of Adonai's work for Him, as if we even could, as opposed to the other way around.
We who believe and trust in and lean on Adonai get entry into the Kingdom that is Yeshua's, and rule and reign with Him there as He directs, because we are redeemed in Him, and only because we are made righteous in Him.
An interesting computer word search through the entire Word
is to simply chase down what everyone has said in the scriptures about the Kingdom, and then compare what Yeshua Himself said as you proceed through the Bible.
Q