רְאוּבֵן֙ בְּכֹ֣רִי

"'And will return and gather thee from all the peoples' - this is the matter of the birthpangs of Mashiah which will occur close to the Redemption so much so that many wise men of Israel said 'Let Mashiah come, but let me not see it.' And the reason is because the Shechina is with us in exile - a mother over her children - to guard us, but at the time of the Redemption, the Shechina will not return with us at one time. Rather, the Shechina will return earlier to the Land of Israel and afterwards, we will return there. If so, while we are in exile and Hashem is not among us, there will be harsh troubles because there is no One to protect. And this is the statement of the verse, 'And will return' because first, Hashem will return to the Land of Israel, and afterwards, 'and gather thee,' but it will not be at the same time" (Gaon Rav Yehonatan Eibeshitz ZT"L).