Lesslie Newbigin:

At the heart of the life of the church is the eucharistic celebration, in which those who gather around the Lord’s table are taken up again and again into his sacrificial action, made partakers of his dying and of his risen life, consecrated afresh to the Father in and through him, and sent out into the world to bear the power of cross and resurrection through the life of the world. This is how the Eucharist is interpreted in the great consecration prayer (John 17). The church represents the presence of the reign of God in the life of the world, not in the triumphalist sense (as the “successful” cause) and not in the moralistic sense (as the “righteous” cause), but in the sense that it is the place where the mystery of the kingdom present in the dying and rising of Jesus is made present here and now so that all people, righteous and unrighteous, are enabled to taste and share the love of God before whom all are unrighteous and all are accepted as righteous. It is the place where the glory of God (“glory as of an only son”) actually abides among us so that the love of God is available to sin-burdened men and women (John 17:22-23). It is the place where the power of God is manifested in a community of sinners. It is the place where the promise of Jesus is fulfilled: “I, when I am lifted up from the earth, will draw all men to myself” (John 12:32). It is the place where the reign of God is present as love shared among the unlovely.