For as the body is one, and hath many members, and all the members of that one body, being many, are one body: so also is Christ.
1 Corinthians 12:12
Only let your conversation be as it becometh the gospel of Christ: that whether I come and see you, or else be absent, I may hear of your affairs, that ye stand fast in one spirit, with one mind striving together for the faith of the gospel... Philippians 1:27
For by one Spirit are we all baptized into one body, whether we be Jews or Gentiles, whether we be bond or free; and have been all made to drink into one Spirit. 1 Corinthians 12:13