First of all, it's friendship with God that makes possible friendship with one another in a manner that is not that we just like one another, but that were are joined by common judgments, by God, for the good of God's church. Such friendship occurs not by trying to be each other's friend, but by discovering you were engaged in common good work that is so determinative, you cannot live without one another. Now, if the church is that, it will talk about friendship in a way that avoids the superficiality of the language of relationship. Because relationships are meant to be spontaneous and short. Friendship, if it is the friendship of God, is to be characterized by fidelity in which you are even willing to tell the friend the truth. Which may mean you will risk the friendship. You need to be in that kind of community to survive the loneliness that threatens all of our souls.