Genesis 15:18, "Unto thy seed have I given this land from the river of Egypt unto the great river, the river Euphrates." Exodus 23:31, "and from the desert unto the river" (Euphrates); and again "from the river, the river Euphrates, even unto the uttermost sea shall your coast be."
Joshua 1:4, "From the wilderness and this Lebanon, even unto the great river, the river Euphrates, and all the land of the Hittites, and unto the great sea toward the going down of the sun, shall be your coast."
Read the New Testament to see the fulfillment of this. I do not know if you have ever read the New Testament, but now would be a good time to start.
Your evidently/seemingly arbitrary ascription of the NT presentations to the fulfillment of these Scriptures is a mental gymnastics exercise I'd be embarrassed to allow anyone to know--much less God.
God is rather clear in a host of Scriptures presented above what He will do with Blood Israel.
He's somewhat to moderately clear what He will do with The Church.
It is discernable, visible that He fully intends to use both in His ways for His glory and cause both to be wedded into Himself; into The Church at the end of the ages.
This is hinted at by the 24 thrones--12 for Blood Israel and 12 for the founders of The Church. There's plenty of other evidence for those with eyes to see and ears to hear.