E86 Q96 In what sense is the Church “one”?

The Church is one because all its members form the one Body of Christ, having “one Lord, one faith, one baptism, one God and Father of all” (Ephesians 4:5–6). The Church is called to embody this unity in all relationships between believers. (Psalm 133; John 17:11, 20–23; Ephesians 2:11–22; 4:2–6)

Download the Catechism here