(Isa 11:12) He will set up a banner for the nations, And will assemble the outcasts of Israel, And gather together the dispersed of Judah From the four corners of the earth.
(Isa 56:8) The Lord GOD, who gathers the outcasts of Israel, says, "Yet I will gather to him Others besides those who are gathered to him."
(Jer 31:10) "Hear the word of the LORD, O nations, And declare it in the isles afar off, and say, 'He who scattered Israel will gather him, And keep him as a shepherd does his flock.'
(Ezek 11:17) "Therefore say, 'Thus says the Lord GOD: "I will gather you from the peoples, assemble you from the countries where you have been scattered, and I will give you the land of Israel."'
(Ezek 34:11-13) 'For thus says the Lord GOD: "Indeed I Myself will search for My sheep and seek them out. {12} "As a shepherd seeks out his flock on the day he is among his scattered sheep, so will I seek out My sheep and deliver them from all the places where they were scattered on a cloudy and dark day. {13} "And I will bring them out from the peoples and gather them from the countries, and will bring them to their own land; I will feed them on the mountains of Israel, in the valleys and in all the inhabited places of the country.
(Ezek 37:21-22) "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; {22} "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. (emphasis added)
Jerusalem would not be taken until Israel was already established as a nation.
The nation of Israel was re-established in 1948 while Jerusalem was not taken back until the Six Day War in 1967! Even the sequence of the reunification was foretold in scripture.