Isaiah 56:6-7
6 “I will also bless the foreigners who commit themselves to the Lord, who
serve him and love his name, who worship him and do not desecrate the
Sabbath day of rest, and who hold fast to my covenant. 7 I will bring them
to my holy mountain of Jerusalem and will fill them with joy in my house of
prayer. I will accept their burnt offerings and sacrifices, because my
Temple will be called a house of prayer for all nations.