Orthodox
Isn't papal primacy opposed to the conciliar nature of the Church?
Catholic teaching holds primacy and conciliarity together: the Pope exercises his ministry of unity within, not above, the college of bishops, much as Peter presided among the apostles at the Council of Jerusalem without eclipsing their authority.
Catholic teaching
The Bishop of Rome is head of the college of bishops as Peter was head of the apostolic college, but that headship serves communion and never operates in isolation from the bishops, who together with him bear responsibility for the whole Church, especially exercised in ecumenical councils.
Biblical foundation
At the Council of Jerusalem, Peter speaks first and decisively (Acts 15:7-11), yet James and the whole assembly of apostles and elders deliberate and confirm the decision together (Acts 15:13-29), a pattern of primacy exercised within collegiality.
Scripture references
Historical evidence
The first seven ecumenical councils, recognized by both East and West, were convened with imperial and episcopal cooperation and their decrees sought and received confirmation from Rome, illustrating a historic interplay of primacy and conciliarity shared by both traditions.
The Church Fathers
“With this Church, because of its more powerful preeminence, every Church must agree.”