Responses to Some Questions Regarding Certain Aspects of the Doctrine of the Church (July 10, 2007), the pope said, “

confirms that the one and only Church of Christ, which we confess in the Creed, has its subsistence, permanence and stability in the Catholic Church, and that therefore, the unity, indivisibility and indestructibility of Christ’s Church is in no way annulled by the separations and divisions of Christians.”

the document “calls attention to the difference that still endures among the different Christian denominations with regard to the understanding of being Church in the proper theological sense.

The consequence of fostering a theological vision which holds the unity and identity of the Church to be gifts "hidden in Christ", reconcilable only in an eschatological perspective, would be that the Church in history would exist de facto in multiple ecclesial forms, and ultimately hinder and paralyze ecumenism itself.”