I used to believe family referred only to blood and marriage the church I went to and then to marriage. I don't believe that anymore.
In an e-mail from Japan we were told that our church family over there has donated furniture for our new home. And then a while ago we were told how they'd moved it into our apartment. This really boggled my brain. People we have never met are looking forward to our arrival. And then I was reminded that the Body of Christ is a family. Why has it taken me so long to know that?
For years I've ranted about church unity. I think it is far simpler than church unity if we remember we are family. Children with the same Father who loves us.
God has not made His desires for us so complicated or to high to reach, we have.
Hope that gets you thinking a bit