I recently preached on church unity and how we should consider the church of God our family and we as parts of that Body supplying each other's needs (Eph. 4:16). And although blood may be thicker than water, faith is thicker than blood.
As a family, of course, we have immediate relations and remote relations. I used an illustration of a friend from Boise (he knows who he is). He was a friend of a friend, but the fact that we are in the same national church (denomination) makes him a relative---kinda like a cousin. But with more commonality than I would have with any cousin in my family!
I used his name in the sermon, referencing his unique facial arrangment (you can see him in the latest New Horizon). I hope he doesn't mind. I even put in a good name for him.
I like to pick on my friends because they can handle it. And Hobart has large shoulders.