וַהֲבִיאוֹתִ֞ים אֶל־הַ֣ר קָדְשִׁ֗י וְשִׂמַּחְתִּים֙ בְּבֵ֣ית תְּפִלָּתִ֔י עוֹלֹתֵיהֶ֧ם וְזִבְחֵיהֶ֛ם לְרָצ֖וֹן עַֽל־מִזְבְּחִ֑י כִּ֣י בֵיתִ֔י בֵּית־תְּפִלָּ֥ה יִקָּרֵ֖א לְכָל־הָעַמִּֽים׃
Rashi on Isaiah
for all peoples Not only for Israel, but also for the proselytes.
Ibn Ezra on Isaiah
For mine house shall be called an house of prayer for all people. Compare the prayer of King Solomon (1 Kings 8:41)