The ingathering of the exiles is as great as the day that heaven and earth were created.
The ingathering of all of the Jewish people back to Israel is an important and highly meaningful event.
(Rabbi Yochanan said: The ingathering of the exiles is as great as the day that heaven and earth were created, as it is said (Hosea 2): 'And the children of Judah and the children of Israel shall be gathered together, and they shall appoint themselves one leader, and they shall go up from the land; for a great day of Jezreel it is' – Pesachim 88a.)
Translation
Expression (Hebrew)
גָּדוֹל קִבּוּץ גָּלֻיּוֹת כַּיּוֹם שֶׁנִּבְרְאוּ בּוֹ שָׁמַיִם וָאָרֶץ
Definition (Hebrew)
קִבּוּץ גָּלוּיוֹת שֶׁל כָּל חֶלְקֵי הָעָם הַיְּהוּדִי בְּאַרְצוֹ הוּא אֵרוּעַ חָשׁוּב בַּעַל עֵרֶךְ עָצוּם.
("אָמַר רַבִּי יוֹחָנָן: גָּדוֹל קִבּוּץ גָּלִיּוֹת כַּיּוֹם שֶׁנִּבְרְאוּ בּוֹ שָׁמַיִם וָאָרֶץ, שֶׁנֶּאֱמַר (הוֹשֵׁעַ ב) וְנִקְבְּצוּ בְּנֵי יְהוּדָה וּבְנֵי יִשְׂרָאֵל יַחְדָּו וְשָׂמוּ לָהֶם רֹאשׁ אֶחָד וְעָלוּ מִן הָאָרֶץ כִּי גָדוֹל יוֹם יִזְרְעֶאל" – פְּסָחִיםפח ע"א).