Catholic Not Roman Catholic
If I delay, you may know how one ought to behave in the household of God, which is the church of the living God, a pillar and buttress of the truth.
1 Tim. 3:16
Catholicity was and is a mark of both the true church and the embodiment of truthful doctrine, both catholicity and the church catholic are considered one and the same. The church catholic is not confined to a particular location, but every local church is a full expression of the entire church. The church catholic is not limited by time: it indestructibly moving through the centuries by the power of the Spirit defeating all its foes. The church catholics’ membership is comprised of those who have trusted in Christ: both those who have died in Christ and those who are currently serving Christ in this life.
Distinctive doctrines of the church catholic include apostolic succession, episcopacy, Eucharistic life, liturgical worship, Trinitarian faith, sacramental worldview, and creedal commitment. Catholicity is Spirit empowered, Christ exalting, and liturgically centered: thereby, charismatic, evangelical and sacramental.
Patristics scholar, D.H. Williams defines further, “Genuine catholicity is that which pertains to everything necessary for the justification and sanctification of the believer. It is a wholeness of faith that offers the complete counsel of God to all people in all times and places.” [D. H. Williams, Retrieving the Tradition and Renewing Evangelicalism (Grand Rapids, MI: Eerdmans, 1999), 225.]
What would it look like to restore the Trinitarian core to Reformed Christianity? Such a Christianity would understand that the gospel itself has a Trinitarian logic: as sinners, it is not until we encounter Jesus Christ that we know that God is a gracious Father who pardons our sin; by faith, we are united to Jesus Christ by the power of the Holy Spirit, who forms us deeper and deeper into the image of Christ. When we come together for worship, we are not simply giving God his “due,” or acting in obedience to the divine command (though we are also doing that), we are encountering life as it really is: we are sinners who find ourselves gratuitously adopted, freely taken by God, filled with the Spirit, participating in Christ. We confess our sins, receive the nourishment of the Word and Sacrament, and go out to love God and neighbor in gratitude. In all of these, we are empowered by the Spirit to partake of Christ, to encounter a gracious, pardoning Father and simultaneously go and serve the neighbor and the stranger.
J. Todd Billings, “The Promise of Catholic Calvinism”