This could be, perhaps one of the most succinct and powerful statements of Christian friendship within the overall trajectory of God's story you'll ever read.
Yet it describes the trajectory of Christian friendship in the kingdom. How one Eastern Orthodox sees this this deep understanding of Christian friendship within God's story:
"Friendship transcends even life on earth, including those who have departed--'a longing for the communion of friends remains. Does it not follow that friendship is the last word of the properly human element of the Church, the apex of humanity? As long as man remains man, he seeks friendship... It is the constitutive element of his nature.' All other human relations are somehow different in the Kingdom, except for friendship which is a foretaste of the eschaton (italics inserted): we neither marry nor are given in marriage (Matthew 22:30), we forsake kindred for the sake of Christ (Matthew 19:29, 10:37); Luke 14:26, etc.), but it is in the Kingdom as friends that we will eat at the Master's Table (cf. John 15:15 and Luke 22:29-30)."
He goes on to say how much the modern mind has forgotten this glorious reality in the kingdom known as friendship:
"The idea that a friend is constant and faithful, ideally someone with whom we live intimately and share all things in common, whom we think of as sharing our soul and given to us by God for our salvation, is alien to the modern mind...How then is friendship to be rehabilitated and regain its once-glorious position at the pinnacle of human relations? Better to ask who will rehabilitate friendship in this society?"
Christian Friendship and Adelphopoiesis