I Corinthians

Just as a body, though one has many parts, but all its many parts form one body, so it is with Christ. (12:12)

And now these three remain: faith, hope, and love. But the greatest of these is love. (13:13) 

But everything should be done in a fitting and orderly way. (14:40, in context this applies to worship services, but I wish I had more success in applying it to the rest of life!)

Be on your guard; stand firm in the faith; be courageous; be strong. Do everything in love. (16:13-14)