Word, baptism and the Supper: these are the Spirit’s weapons in the kingdom that Christ is building. Throughout our warfare in this life, the Spirit brings us back to our location “in Christ”, signified and sealed in our baptism and our shared meal. Through these means of grace, the Spirit not only gathers us together in Christ but continues to build us up into Christ as our living head. In this way, the church is no longer merely one voluntary association alongside others, but the only truly cross-cultural communion of saints in the world.
Horton, Michael; The Gospel Driven Life: Being Good News People in a Bad News World; Baker Books; Grand Rapids, MI; Copyright 2009; page 202