Israel were scattered as a consequence of the exile. True believers were gathered back to Palestine in the period that followed the return from exile so that by the time of Jesus Christ 'Jews' from all the tribes were back in the land
which was what happened after the exile between 538 BC and 1 AD
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in terms of ethnicity it is doubtful if there is one Westerner who is not a Jew, that is has Jewish blood in their veins. Through the centuries Jews have intermarried with Gentiles resulting in the spreading of the Jewish bloodline.
Very few if any Jew in modern Israel can prove their bloodline. Indeed in allowing peoples to become Israelites not much emphasis has been placed on bloodline as no evidence could be produced.
The Israelites scattered throughout Mesopotamia and Egypt also freely intermarried so that it is probable that large numbers of Middle-easterner are Jews (have Jewish blood in their bloodline) including many Arabs.
Who then are Jews today? Whoever decides to call himself a Jew (this was the basis on which Israel was formed).
But who are the true Israel? Answer: those millions of Jews who believed in the Messiah who CONTINUED to be the Israel accepted by God. The remainder were rejected by God, never to be restored unless as individuals they come to believe in the Messiah.
That Israel accepted by God was augmented by Gentile proselytes who became Messiah believers and thus Israelite proselytes. They TOO CONTINUED as the true Israel. There was no question of replacement. They always have been Israel. It is unbelieving Jews who are no longer Israel. That is the message of Rom 9-11.
Total nonsense. Unbelieving Jews are NOT in the body of Christ. They can only become so by believing in the Messiah and being incorporated back in to the true Israel which is made up of all true believers in Christ
First part of the reply is to as who the Jews are.
The name/term Jew comes from the split of the kingdom of Israel.
The Southern Kingdom is known as Judah, which is where Jew came from.
So when I say Jew I am referencing thos with the lineiage to the Kingdom of Judah, which can be traced very easily.
I know this because my dad, explained to me that his lineiage comes from the Russian Jews that came to America when they were being kicked out of Russia. On top of that my dad did DNA testing to look at his ancestry, and our ancestry trace back to to the region of the area in the Middle East that the Southern Kingdom was in.
No the northern kingdom, referred to either as Israel or Ephraim, is the part that was atually scattered amongst the nations, and is extremely hard to trace back.
It looks as you are referring to the whole of Israel as Jews, which only a part of the whole of Israel is concidered the Jews.
When reading the prophets, one needs to pay very close attention to what is being said. The language it uses a lot is the terms Israel, Ephraim, and Judah it's all referrencing which part of the whole of Israel is. Again when the prophets reference Israel vs. Judah or Ephraim vs. Judah, it's basically referrencing Northern Kingdom vs. Southern Kingdom.
So simply as far as who the Jews are, it's just someone who is a decendant from the Kingdom of Judah.
Now part 2.
You may correct me if I'm wrong in my assumption.
My assumption is that you are stating that basically stating is that God ultimately gave up on the whole of Israel, so God Himself changed to conform to the gentiles because the northern kingdom was scattered amongst the nations (despite the northern kingdom being the main cause of the split and turning away from God's ways). So God conforms to the northern kingdom, and leaves the southern kingdom completely doomed and punished even though they kept God's ways. Thus ultimately replacing Israel with a "new system".
The makes no sense and is not biblical.
See the reason why the northern kingdom was scattered is because they had poor leadership and went away from God's ways. The southern kingdom had poor leadership and perversed God's was by adding to His ways, thus still making it not God's ways.
When God came into covenant with Israel it was a love language similar to marriage, and it was basically a marrying of God and Israel together.
Israel as a whole became an adulterer by doing their own things whether it be steering away from God's covenant, or adding their own traditions into His covenant.
Ultimately according to God's covenant there has to be a sacrifice for sin when there is adultry (it wasn't always immediately stoning).
Jesus paid that price of the adultery of Israel because God loves Israel and He wants His people in His covenant.
Jesus was that ultimate sin offering/sacrifice to cover the adultry of Israel.
Now along with that since the northern kingdom was disperssed amongst the nations (gentiles), Jesus' death broke the wall/barrier that kept gentiles out of the convenant between God and Israel. This why it's said there is no Greek/gentile or jew in Christ. Because Jesus broke that barrier and took it away.
There are faults on both sides as far as northern/southern kingdoms and what they did so there was that sacrifice needed for the 2 to come back together as one.
Now I do agree with you, that the Jews need to come and accept Christ, but that does not make them non-included or replaced as far as what/who Israel is to God.
Anyone who is a believer is a child of Israel, because that's what God calls His people.