Church

The New Testament does not envisage solitary religion; some kind of regular assembly for worship and instruction is everywhere taken for granted in the Epistles. So we must be regular practising members of the Church. Of course we differ in temperament. Some (like you—and me) find it more natural to approach God in solitude; but we must go to Church as well. For the Church is not a human society of people united by their natural affinities but the Body of Christ, in which all members, however different, (and He rejoices in their differences and by no means wishes to iron them out) must share the common life, complementing and helping one another precisely by their differences.

- Letters of C. S. Lewis
It is so easy to think that the Church has a lot of different objects—education, building, missions, holding services. [. . .]The Church exists for nothing else but to draw men into Christ, to make them little Christs. If they are not doing that, all the cathedrals, clergy, missions, sermons, even the Bible itself, are simply a waste of time. God became Man for no other purpose. It is even doubtful, you know, whether the whole universe was created for any other purpose.

- Mere Christianity