So between the death of Christ and the Last Day it is only by a gracious anticipation of the last things that Christians are privileged to live in visible fellowship with other Christians. It is by the grace of God that a congregation is permitted to gather visibly in this world to share God’s Word and sacrament. Not all Christians receive this blessing. The imprisoned, the sick, the scattered lonely, the proclaimers of the Gospel in heathen lands stand alone. They know that visible fellowship is a blessing. They remember, as the Psalmist did, how they went ‘with the multitude . . . to the house of God, with the voice of joy and praise, with a multitude that kept holyday’ (Ps. 424).

Dieterich Bonhoeffer from Life Together