When we refer to the Church we should define the word a little. We mean the whole Church, the Church as an ecumenical body spread around the world, and not just its particular form in a parish in a local community.
The Church we are talking about is a tremendously powerful institution in our society, and in the world. That Church is one form of the Presence of God on Earth, and so naturally it is powerful. It is powerful by definition. It is a powerful moral and spiritual force which cannot be ignored by any movement.
The Mexican-American and the Church (1968)