וְ֠נִקְבְּצוּ בְּנֵֽי־יְהוּדָ֤ה וּבְנֵֽי־יִשְׂרָאֵל֙ יַחְדָּ֔ו וְשָׂמ֥וּ לָהֶ֛ם רֹ֥אשׁ אֶחָ֖ד וְעָל֣וּ מִן־הָאָ֑רֶץ כִּ֥י גָד֖וֹל י֥וֹם יִזְרְעֶֽאל׃
און די קינדער פֿון יהודה און די קינדער פֿון ישׂראל װעלן זיך אײַנזאַמלען אין אײנעם, און זײ װעלן זיך מאַכן אײן הױפּטמאַן, און זײ װעלן אַרױפֿגײן פֿון דעם לאַנד, װאָרום גרױס װעט זײַן דער טאָג פֿון יִזרְעֶאל.
Rashi
And the number...shall be What is the connection of retribution and consolation juxtaposed in one speech? Our Rabbis explained in Pesachim (87b): Hosea felt that he had sinned by saying, “Exchange them for another nation.” He stood and begged mercy for them (See above 1:2). And in Sifrei Devei Rav, in the section commencing: “And Israel abode in Shittim” (Num. 25) we learned: Rabbi says: Some sections are close to each other yet as far apart as east is far from west. “For you are not My people... And the number of the children of Israel shall be as the sand of the sea.” What is the connection of one to the other? This can be compared to a king who became angry with his wife. He summoned a scribe to come and write a bill of divorcement. Before the scribe arrived, the king became reconciled with his wife. Said the king, “Is it possible that this scribe should leave here divided?” I.e. his heart should be divided and bewildered, saying, “Why did the king send for me?” He said to him, “Come and write that I am doubling her kethubah.” And according to its simple meaning, this is the reason for its juxtaposition. “For you are not My people, and I will not be yours.” I will show Myself as though I am not yours, and you shall be exiled among the nations, and even there you shall multiply and grow, and there you shall lay it to your heart to return to Me, as it is said through Moses (Deut. 30:1,3): “And you shall lay it to your heart among all the nations where...has exiled you etc. And the Lord your God shall return your captivity.” Here too, “And the children of Judah and the children of Israel shall be gathered together.”
Sforno
ויזכור יוסף את החלמות אשר חלם להם. He remembered the part his brothers had played in his dreams, how they had bowed down to him in the dream showing the sheaves of corn. (37,7) He remembered that only his own sheaf had remained erect, and not fallen after first having arisen. This is why he wanted that they would all come when he would recognise them and the part in the dream speaking of the upright sheaf remaining upright would be fulfilled also. This detail of the dream was due to Joseph symbolising the redeemer of the Jewish people in the future as portrayed by the words ירה ויור, “shoot!, and he shot”. in Kings II 13,17. [this was an opportunity, though missed because of the king of Israel not complying completely with the prophet Elisha’s instructions, of reuniting the kingdoms of Yehudah and the Kingdom of Israel. i.e. that of Ephrayim, the descendant of Joseph. Ed.] There were several such opportunities foreseen by the prophets compare Hoseah 2,2 and Daniel 2,44. The author does not really elaborate. Ed.]
Ramban
AND HE WILL GO UP ‘MIN’ (OUT OF) THE LAND. “I.e., ‘against our will.’ Our Rabbis explained that they spoke like a person who is pronouncing a curse against himself but assigns the curse to others. Thus it is as if Scripture wrote, ‘And we shall have to go up out of the land, and they will possess it.’” These are the words of Rashi. But if the explanation is as the Rabbi has it, [i.e., that the Israelites will go up to wage war against the Egyptians], Scripture would have said, “And he will go up al (against) the land,” [instead of saying min ha’aretz (out of the land)]. Such is the correct expression concerning warriors: Nebuchadnezzar king of Babylon came up ‘al’ (against) all the fortified cities of Judah, and took them38Ramban here combined two verses: II Kings 24:1 and 18:13.; Rezin the king of Aram… went up to Jerusalem to war ‘aleha’ (against it).39Isaiah 7:1. Perhaps [Rashi will explain it by] saying that the meaning is that “he will come up against us from the land wherein he dwells,” meaning the land of Goshen.
It is possible to explain that Pharaoh is saying that “if wars will occur, the Israelites may join forces with our enemies to take the spoil, and to take the prey.40Ibid., 10:6. They will get themselves up out of this land to the land of Canaan with all our belongings, and we will not be able to wreak our vengeance on them nor to war against them.” This is similar to the verses: that brought us up out of the land of Egypt;41Further, 32:1. that brought up and that led the seed of the house of Israel out of the north country, and from all the countries whither I had driven them.42Jeremiah 23:8. Similarly, the verse, And they shall appoint themselves one head, and shall go up out of the land,43Hosea 2:2. means they shall appoint over themselves a captain and they shall go up to their land out of the country in which they had been exiled.
It is possible to explain that Pharaoh is saying that “if wars will occur, the Israelites may join forces with our enemies to take the spoil, and to take the prey.40Ibid., 10:6. They will get themselves up out of this land to the land of Canaan with all our belongings, and we will not be able to wreak our vengeance on them nor to war against them.” This is similar to the verses: that brought us up out of the land of Egypt;41Further, 32:1. that brought up and that led the seed of the house of Israel out of the north country, and from all the countries whither I had driven them.42Jeremiah 23:8. Similarly, the verse, And they shall appoint themselves one head, and shall go up out of the land,43Hosea 2:2. means they shall appoint over themselves a captain and they shall go up to their land out of the country in which they had been exiled.