Isaiah 56:6 — 7, “And the foreigners who join themselves to the LORD, to love the name of the LORD, and to be His servants— all who keep the Sabbath without profaning it and who hold fast to My covenant— I will bring them to My holy mountain and make them joyful in My house of prayer. Their burnt offerings and sacrifices will be accepted on My altar, for My house will be called a house of prayer for all the nations.”