English Standard Version
"And the foreigners who join themselves to the LORD, to minister to him, to love the name of the LORD, and to be his servants, everyone who keeps the Sabbath and does not profane it, and holds fast my covenant--New International Version
And foreigners who bind themselves to the LORD to serve him, to love the name of the LORD, and to worship him, all who keep the Sabbath without desecrating it and who hold fast to my covenant-Catholic Public Domain Version
And the sons of the new arrival, who adhere to the Lord so as to worship him and to love his name, shall be his servants: all who keep the Sabbath without profaning it, and who hold to my covenant