Ezekiel 39:27-31

When I bring them back from the peoples and gather them from the lands of their enemies, then I shall show Myself holy 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 I 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.