1 Corinthians 6:5

6:5 I say this to your shame! Is there no one among you wise enough to settle disputes between fellow Christians?

1 Corinthians 10:17

10:17 Because there is one bread, we who are many are one body, for we all share the one bread.

1 Corinthians 11:19

11:19 For there must in fact be divisions among you, so that those of you who are approved may be evident.

1 Corinthians 12:25

12:25 so that there may be no division in the body, but the members may have mutual concern for one another.