Word, Sacrament, and the Public Life of Christians: Calvin’s Worship-Formed Ethics in Institutes IV

This article argues that John Calvin’s account of the church in Institutes of the Christian Religion IV is best read through the formative logic of worship. Calvin famously identifies preaching the Word and administering the sacraments as the marks of the visible church. Rather than regarding these marks merely as identifiers, this study interprets them as worship practices that shape Christian life “in-between” church and society. First, the preached Word is not simply received as information but functions as the medium through which faith is generated and sustained, forming a community tasked to bear truth publicly. Second, the sacraments operate as embodied theology: baptism initiates believers into ecclesial belonging through cleansing, renewal, and confession, while the Lord’s Supper repeatedly schools the church in remembrance, thanksgiving, unity, and mutual love. Finally, by situating the Word and sacrament within the church’s maternal nurture and the ministry of reconciliation, the article shows how worship extends beyond the sanctuary, cultivating conscience and communal practices oriented toward public peace and responsibility. In Calvin’s Reformation vision, worship is thus the hinge that links ecclesiology to social ethics without collapsing the distinction between the church and civil society.