It seems that the "Gentiles"/nations, seem to think they are now "Israel", for that is what their false prophets of Matthew 7:15 tells them. What does Jeremiah 31 say about it? Jeremiah addresses both the "house of Judah" and the "house of Israel", and says that he gave his "covenant" to the "house of Israel", which was of course through Moses, prior to the "house of Israel" being separated from the "house of Judah", ultimately due to the sin of king David. That "house of Israel" was eventually "scattered among the nations" (Ezekiel 36:17-24), do to their "ways and deeds", and eventually "I will take you from the nations, gather you from all the lands, and bring you into your own land..... I will give you a new heart....and you will be careful to observe My ordinances".
In what way does that indicate nations/Gentiles, would be Israel, who according to Jeremiah 30:11, "I will destroy completely al the nations where I have scattered you." ? The "you" being "Jacob"/"Israel".
Dan officially lost their place among the tribes -which is why the tribes listed are different in places.
However, the tribe of Dan was "as a serpent's trail" -and had a custom of naming pretty much everything after that name -including "Denmark" or "Danmark"
This gives some indication of general direction of movement.
Though the following applies to the "lost ten tribes", as they are often called ..... “For surely I will command, And will
sift the house
of Israel
among all
nations, As grain is
sifted in a sieve; Yet not the smallest grain shall fall to the ground."...
they lost their self-identity and language. (For with stammering lips and
another tongue will he speak to this people... The ox knows its owner And the donkey its master's crib; But
Israel does not know, My people
do not consider.)
Though sifted among nations, they also eventually came to the places and situations promised by birthright and in prophecy. They became nations, but still not usually recognized as being Israelite.
(“Not so, my father!” Joseph said. “This one is the firstborn; put your right hand on his head.” 19
But his father refused. “I know, my son, I know!” he said. “He too shall become a people, and he too shall be great; nevertheless, his younger brother shall be greater than he, and his offspring shall become a multitude of nations.”")
(17
I will surely bless you, and I will multiply your descendants like the stars in the sky and the sand on the seashore. Your descendants will possess the gates of their enemies. 18And through your offspring all nations of the earth will be blessed, because you have obeyed My voice.”)
Another clue is the continuous throne of David (17
For this is what the LORD says: David will never lack a man to sit on the throne of the house of Israel,) (though it necessarily transferred through female of the line ). It is said that the prophet Jeremiah traveled with Jacob's pillar stone and a female of David's line to Ireland
(26Thus saith the Lord GOD; Remove the diadem, and take off the crown: this
shall not
be the same: exalt
him that is low, and abase
him that is high.
27I will overturn, overturn, overturn, it: and it shall be no
more, until he come whose right it is; and I will give it
him.)
Stone of Jacob - Wikipedia
They eventually return to the area around Jerusalem as the house of Judah has -and will again be united.
(‘In those days and in that time,’ says the LORD, ‘the children of Israel shall come, they and the children of Judah together; with continual weeping they shall come, and seek the LORD their God. They shall ask the way to Zion, with their faces toward it, saying, “Come and let us join ourselves to the LORD in a perpetual covenant that will not be forgotten”’” (Jeremiah 50:4-5).
“‘As for you, son of man, take a stick for yourself and write on it: “For Judah and for the children of Israel, his companions.” Then take another stick and write on it, “For Joseph, the stick of Ephraim, and for all the house of Israel, his companions.” Then join them one to another for yourself into one stick, and they will become one in your hand.
“‘And when the children of your people speak to you, saying, “Will you not show us what you mean by these?”—say to them, “Thus says the Lord GOD: ‘Surely I will take the stick of Joseph, which is in the hand of Ephraim, and the tribes of Israel, his companions; and I will join them with it, with the stick of Judah, and make them one stick, and they will be one in My hand.’” … Then say to them, “Thus says the Lord GOD: ‘Surely I will take the children of Israel from among the nations, wherever they have gone, and will gather them from every side and bring them into their own land; and I will make them one nation in the land, on the mountains of Israel; and one king shall be king over them all; they shall no longer be two nations, nor shall they ever be divided into two kingdoms again’”’” (Ezekiel 37:16-19, 21-22).
