Likutei Moharan 21:13/ליקוטי מוהר"ן כ״א:י״ג

113. Now behold, in the future everyone will know God, even the gentiles, as mentioned. “The earth will be filled with knowledge.” But of the knowledge which they will have then, it is possible for us [the Jews] to know and to speak; whereas of the knowledge which we will have then, it is presently impossible even to speak. Currently, that knowledge is the aspect of transcendent/encircling. For the truth is that all the perfection and good which the gentiles now have, is nothing at all. As mentioned above, “If you are lacking knowledge, [what have you acquired?]” On the contrary, all their greatness and the good which they have is all for our benefit. And in the future, when the earth will be filled with knowledge, and even the gentiles will know God, then, they will understand that all the greatness and good which they had in this world was actually entirely for our benefit and greatness.

2This is, “Then they will declare among the nations, ‘God has done greatly with these.’ God has done greatly with us.” In other words, all the greatness which “God has done greatly with us” {the gentiles} in this world; “God has done greatly with these,” for it was all the greatness of these {the Jewish people}. It was all for their good and benefit. They [the gentiles] will understand this with the knowledge and comprehension that they will have then. But for us, this knowledge will be a simple matter to be laughed at. For then, our knowledge will have expanded greatly.

3And this is, “Then our mouth will be filled with laughter…. Then they will declare among the nations, ‘God has done greatly…’” For this knowledge and comprehension which they will then have—to say that ‘God has done greatly’—this will be a simple and laughing matter. This is because our knowledge will be very great.

4And therefore, in the future, people will live an eternal life. For then, knowledge will be revealed and they will be encompassed in the One. Thus our Sages said [on the verse]: “‘On that day God shall be one and His name one’ (Zechariah 14:9) —Is He now not one? … But presently, the blessing we recite over bad news is ‘Blessed is the Truthful Judge,’ while over good tidings [we bless] ‘Who is good and beneficent.’ However, in the future, ‘Who is good and beneficent’ will be said at all times.”

5This is because, in the future, when knowledge will be revealed, they will know that there is no bad in the world at all. Rather, everything is good, and everything is one. And even the exile is only because of a lack of knowledge, as in, “Therefore My nation has been exiled, for they have no knowledge.” This is why the redemption from Egypt came through Moshe. He was the aspect of knowledge. This is what is written (Exodus 6:7), “You will know that I am God, who brings you out from under the Egyptian subjugation.” This is because, principally, the redemption is through knowledge.