I think the passage jumps out at me is:
10 I appeal to you, brothers, by the name of our Lord Jesus Christ, that all of you agree, and that there be no divisions among you, but that you be united in the same mind and the same judgment.
The context here is division over Paul and Apollos... but division is bad for a body of believers. This is important for my church right now. We're looking at changing our name removing the denominational affiliation from the name, but not dropping our association. For some people they can't see a difference and there's potential for division.