'Join' in the Bible

Woe unto them that add house to house, that join field to field, until there is no more room, and that ye dwell yourselves alone in the midst of the land!

Also the sons of the alien, that join themselves to Jehovah, to minister unto him and to love the name of Jehovah, to be his servants, every one that keepeth the sabbath from profaning it, and holdeth fast to my covenant;