From the Daily Episcopalian:
In Romans, Paul reminds us of the primary calling of the Christian community, to love with the power of God for the good of the world. In Matthew, Jesus teaches that the primary identity, life and vocation of his followers is done in the context of the Eucharistic community. This is where the presence of God is guaranteed to be amongst us. This is where we can achieve God’s will. This is how we are to do it – in gathered prayerful discernment of God’s word.
For Christians, I believe, by belonging to the Body of Christ, we find our primary significance. By belonging to a gathering of persons who call Jesus Lord, we find our primary identity. By doing the mission of God together – we find that we can make a difference to the world and in our own private lives as well.