Isaiah 56:6-7

Also the strangers that cleaue vnto the Lord, to serue him, and to loue the Name of the Lord, and to be his seruants: euery one that keepeth the Sabbath, and polluteth it not and imbraceth my couenant, Them wil I bring also to mine holy mountaine, and make them ioyfull in mine House of prayer: their burnt offerings and their sacrifices shall be accepted vpon mine altar: for mine House shall be called an house of prayer for all people.