***For, behold, in those days, and in that time, when I shall bring again the captivity of Judah and Jerusalem,I will also gather all nations, and will bring them down into the valley of Jehoshaphat, ***
I’m sorry, but the way you are trying to split this Scripture up makes no sense. These 2 things happen at the same time not 2 different times.
They have happened simultaneously , there is no split- God has regathered the captives- and He has caused the nations to form the congress of nations, the UN-