“Let him who is not in community beware of being alone. Into the community you were called, the call was not meant for you alone; in the community of the called you bear your cross, you struggle, you pray. You are not alone, even in death, and on the Last Day you will not be only one member of the great congregation of Jesus Christ. If you scorn the fellowship of the brethren, you reject the call of Jesus Christ, and thus your solitude can only be hurtful to you. ‘If I die, then I am not alone in death; if I suffer they [the fellowship] suffer with me’ [Luther].
We recognize, then, that only as we are within the fellowship can we be alone, and only he that is alone can live in the fellowship. Only in the fellowship do we learn to be rightly alone and only in aloneness do we learn to live rightly in the fellowship. It is not as though the one preceded the other; both begin at the same time, namely, with the call of Jesus Christ.
Each by itself has profound pitfalls and perils. One who wants fellowship without solitude plunges into the void of words and feelings, and one who seeks solitude without fellowship perishes in the abyss of vanity, self-infatuation, and despair.
Let him who cannot be alone beware of community. Let him who is not in community beware of being alone.”
Dietrich Bonhoeffer Life Together: The Classic Exploration of Christian Community
“The believer feels no shame, as though he were still living too much in the flesh, when he yearns for the physical presence of other Christians. Man was created a body, the Son of God appeared on earth in the body, he was raised in the body, in the sacrament the believer receives the Lord Christ in the body, and the resurrection of the dead will bring about the perfected fellowship of God’s spiritual-physical creatures. The believer therefore lauds the Creator, the Redeemer, God, Father, Son, and Holy Spirit, for the bodily presence of a brother. The prisoner, the sick person, the Christian in exile sees in the companionship of a fellow Christian a physical sign of the gracious presence of the triune God. Visitor and visited in loneliness recognize in each other the Christ who is present in the body; they receive and meet each other as one meets the Lord, in reverence, humility, and joy. They receive each other’s benedictions as the benediction of the Lord Jesus Christ. But if there is so much blessing and joy even in a single encounter of brother with brother, how inexhaustible are the riches that open up for those who by God’s will are privileged to live in the daily fellowship of life with other Christians!
It is true, of course, that what is an unspeakable gift of God for the lonely individual is easily disregarded and trodden under foot by those who have the gift every day. It is easily forgotten that the fellowship of Christian brethren is a gift of grace, a gift of the Kingdom of God that any day may be taken from us, that the time that still separates us from utter loneliness may be brief indeed. Therefore, let him who until now has had the privilege of living in common Christian life with other Christians praise God’s grace from the bottom of his heart. Let him thank God on his knees and declare: It is grace, nothing but grace, that we are allowed to live in community with Christian brethren.”
-Dietrich Bonhoeffer Life Together – The Classic Exploration of Christian Community