'Joined' in the Bible

I want their hearts to be encouraged and joined together in love, so that they may have all the riches of assured understanding and have the knowledge of God’s mystery—Christ.

And not joined to the Head, from whom all the body, being given strength and kept together through its joins and bands, has its growth with the increase of God.

And more than all, have love; the only way in which you may be completely joined together.