Dispensationalism causes its followers not to be able to see that the New Testament teaches that those of Old Covenant Israel who rejected Christ were cut off (Romans 11: 15-21). In fulfillment of Old Testament prophecy (II Kings 21: 13, Isaiah 29: 16 and Jeremiah 18: 1-6), physical Israel was transformed into a spiritual house (I Peter 2: 5-9), the physical Jew was no longer a true Jew but those led by the Spirit were true Jews (Romans 2: 17-29) and those of Old Covenant Israel without Christ formed in them and remaining in the physical are not the children of God (Romans 9:6-8) and in Galatians 3: 3-29 all who are in Christ are the seed of Abraham, meaning being a member of the chosen people by physical means - by genetics - was done away with. Yet Paul teaches in Romans 11: 1-5 that God did not cast away his people - Old Covenant Israel - because "Even now at this present time also there is a remnant according to the election of grace." Dispensationalism prevents its followers from understanding that Old Covenant Israel was changed by Christ, and the prophecy on turning Jerusalem or physical Israel upside down, so that now the spiritual is on top instead of that which is merely physical, was fulfilled in that remnant Paul talks about in Romans 11: 5. Being a chosen people by physical genetics, animal sacrifice for sin, circumcision in the flesh of male members of Old Covenant Israel, the literal temple building, the feasts and holy days of the Ceremonial Law were all fulfilled and ended in Christ. They are called shadows in the New Testament (Hebrews 10: 1, Colossians 2: 17).
The refusal of dispensationalism to fully accept this change in physical Israel led that tradition of men to claim that God now has two peoples, Old Covenant Israel and the church, neither of which equal the Body of Christ. The Body of Christ is all the elect, and any body - the church - which includes those not the elect is not the Body of Christ. Christ said in John 10: 16 that there is one fold, not two, and Paul in Romans 12: 5 says we, being many, are one body in Christ. Church, a mistranslation of ekklesia, is just the meetings, assemblies or congregations of Israel reborn as a spiritual house in Jesus Christ. Old Covenant Israel is no longer a people of God. Yet the door is open for any Jew to come to Christ and have him formed in them, while giving up all claim to being of the chosen people by race. There is one Body of Christ in New Testament doctrine, and to teach that there are now two Bodies of Christ is another Gospel, and Paul says in Galatians 1: 6-9 that if you follow another Gospel you are accursed.
This foundational error of dispensationalism has effects in many different areas, including the prophecies about the First Beast of Revelation 13, which includes the U.S. as an empire having some of the traits of the lion, bear and leopard empires which are post-Cross.
I can agree with that as a spiritual concept related to Galatians 3 and Romans 5 & 9, but not any part that God has cast away His promises given specifically to the 'seed' of Israel; nor any such idea that those Rev.13:2 symbols from Daniel 7 relate to America.
Amos 9:8-15
8 Behold, the eyes of the Lord GOD are upon the sinful kingdom, and I will destroy it from off the face of the earth; saving that I will not utterly destroy the house of Jacob, saith the LORD.
9
For, lo, I will command, and I will sift the house of Israel among all nations, like as corn is sifted in a sieve, yet shall not the least grain fall upon the earth.
10 All the sinners of My people shall die by the sword, which say, "The evil shall not overtake nor prevent us."
11
In that day will I raise up the tabernacle of David that is fallen, and close up the breaches thereof; and I will raise up his ruins, and I will build it as in the days of old:
12
That they may possess the remnant of Edom, and of all the heathen, which are called by My name, saith the LORD that doeth this.
13 Behold, the days come, saith the LORD, that the plowman shall overtake the reaper, and the treader of grapes him that soweth seed; and the mountains shall drop sweet wine, and all the hills shall melt.
14
And I will bring again the captivity of My people of Israel, and they shall build the waste cities, and inhabit them; and they shall plant vineyards, and drink the wine thereof; they shall also make gardens, and eat the fruit of them.
15
And I will plant them upon their land, and they shall no more be pulled up out of
their land which I have given them, saith the LORD thy God.
(KJV)
That part in red about the land God has given the seed of Israel was given back in Israel's history, and Ezekiel 47-48 shows the land inheritances of the 12 tribes of Israel in final in God's future Kingdom.
We should pay particular attention to what Apostle Paul said in Romans 11 that God has not cast away His people which He foreknew:
Rom 11:1-2
1 I say then,
Hath God cast away His people? God forbid. For I also am an Israelite, of the seed of Abraham, of the tribe of Benjamin.
2
God hath not cast away His people which He foreknew. Wot ye not what the scripture saith of Elias? how he maketh intercession to God against Israel, saying,
(KJV)
Paul's Message in Romans 11 is actually a continuation of his subject in Romans 9. He would never disagree with God's prophecy in Jeremiah 31 about Israel remaining a chosen nation and people to Him for ever. So the Dispensationalists are actually very correct on that point about the seed of Israel continuing forever. That idea they did not make up, for it is written in God's Word emphatically.
So what is the difference? The difference is that only the 'believing' part of the seed of Israel is applied in Christ's Salvation, the rest of the seed of Israel being cut off that refuse. It's the same for anyone of any nation also that refuses God's Salvation through His Son Jesus Christ. In the latter part of Romans 11, Apostle Paul declares how the part of Israel God put in blindness will come to Christ's Salvation also eventually (meaning the unbelieving Jews which is only one part of the seed of Israel, the ten tribes making up the other part and actually the majority of the seed of Israel).
Hasn't anyone ever considered what Paul said in Romans 9 about God loving Jacob but hating Esau, even before they were born? It's from the OT Book of Malachi. There God showed Israel He chose them even before the foundations of the world. God meted out the nations and peoples before the foundation of this world.
This is why many Gentile brethren don't like the subject of God's prophecies about the ten lost tribes of Israel in their relation to God's Plan of Salvation through His Son Jesus Christ with The Gospel being sent to them and then their taking it (along with believing Gentile disciples) to the rest of the nations, all relating to western Christian history.
Some Gentile believers think it an insult to teach such a thing as Christ's Salvation involving the 'seed' of any one nation like the seed of Israel. Yet it is part of God's Word, the prophecies about it given long ago through God's OT prophets.
When our Lord Jesus promised His Apostles of the seed of Israel they each would sit upon a throne judging the 12 tribes of Israel in His future Kingdom, that was not about us Gentiles on those thrones. But we are included with believing Israel in Christ's future Kingdom, and that should be enough; so there's no need for us to try and destroy what God has already given specifically to the believing seed of Israel per His Salvation Promises.