The Jewish state of Israel will not continue to be the apostate, LGBT Jesus rejecting people that they are now.
Jeremiah 12:14-17 contextually, in its uncondensed format, was directed more towards the surrounding nations of Israel than it was towards Israel. It was a warning to them to not exploit their punishment.
It is one thing to quote passages or even parts of passages relevant to a particular topic, but the "condensing" as you call it, did make what the scripture was communicating to appear different than what it actually was.
There is no way to put a spin on what you did, but when you deliberately resorted to altering scripture to support the doctrine you follow, you committed an act of both theological and intellectual dishonesty and made your case to appear weak in the eyes of your detractors and objective skeptics giving them all the more reason to doubt the credibility of the case you try to present.
Actually, the events you cited happen within roughly the same time-frame as Armageddon. Armageddon, when we actually come to understand everything that takes place on that day, is really about Israel against the rest of the world and it will be a battle so fierce and destructive, that it will require the return of the Lord or else both Christian and non-Christian, Jew and Gentile will all be destroyed.
Again, as I have mentioned before, the context of Isaiah 30:26 does not depict the sun as a destructive instrument. Revelation 16:8, however does.
Trouble will come, but the cited passages are about deliverance.
The enmity between Judah and the other tribes was put away since the end of their captivity in Babylon. As for the rest of the events mentioned, if the completion of their regathering does not transpire when the Lord returns, when else would it?