Talmud for Oktzin 3:12
אָמַר רַבִּי יְהוֹשֻׁעַ בֶּן לֵוִי, עָתִיד הַקָּדוֹשׁ בָּרוּךְ הוּא לְהַנְחִיל לְכָל צַדִּיק וְצַדִּיק שְׁלשׁ מֵאוֹת וַעֲשָׂרָה עוֹלָמוֹת, שֶׁנֶּאֱמַר (משלי ח), לְהַנְחִיל אֹהֲבַי יֵשׁ וְאֹצְרֹתֵיהֶם אֲמַלֵּא. אָמַר רַבִּי שִׁמְעוֹן בֶּן חֲלַפְתָּא, לֹא מָצָא הַקָּדוֹשׁ בָּרוּךְ הוּא כְּלִי מַחֲזִיק בְּרָכָה לְיִשְׂרָאֵל אֶלָּא הַשָּׁלוֹם, שֶׁנֶּאֱמַר (תהלים כט), ה' עֹז לְעַמּוֹ יִתֵּן ה' יְבָרֵךְ אֶת עַמּוֹ בַשָּׁלוֹם:
Rabbi Yehoshua ben Levi said: In the future, the Holy One, blessed be He, will bequeath to each and every righteous person three hundred and ten worlds, as the verse says, (Proverbs 8:21), "To bequeath substance [literally: 'yesh,' the numerical value of which is three-hundred and ten] to My loved ones, and I shall fill their treasuries." Rabbi Shimon ben Chalafta said: The Holy One, blessed be He, found no vessel that can [sufficiently] hold the blessing for Israel, save for peace, as the verse says, (Psalms 29:11) "Hashem will give strength to His nation, Hashem will bless His nation with peace."