'Joins' in the Bible

And do not let the {foreigner} [who] joins himself to Yahweh say, "Surely Yahweh will separate me from his people." And do not let the eunuch say, "Look! I [am] a dry tree!"

Or do you not know that the one who joins himself to a prostitute is one body [with her]? For it says, "The two will become one flesh."

But the one who joins himself to the Lord is one spirit [with him].