Ezekiel 39:27-29

When I bring them back from the peoples and gather them from the lands of their enemies, then I shall be sanctified through them in the sight of the many nations. Then they will know that I am the LORD their God because I made them go into exile among the nations, and then gathered them again to their own land; and I will leave none of them there any longer. I will not hide My face from them any longer, for I will have poured out My Spirit on the house of Israel,” declares the Lord GOD.