If you’ve already looked it up, then no doubt you know the verse in question is Colossians 4:10.
What are your thoughts? I.e.: why would God eschew the word, ‘cousins,’ if that was in fact the relationship He intended to convey? Why would God use the word for, ‘brothers,’ if that was NOT the relationship He intended to convey?
Incidentally, take all the time you need to reply. There’s no rush at all.