When does a baptized person separate himself from full incorporation in the Mystical Body by apostasy? A baptized person separates himself from full incorporation in the Mystical Body by apostasy when he openly rejects the entire Christian faith.
When does a baptized person separate himself from full incorporation in the Mystical Body by schism? A baptized person separates himself from full incorporation in the Mystical Body by schism when he openly refuses obedience to the lawful authorities of the Church, particularly to the Pope.
When is a baptized person separated from full incorporation in the Mystical Body by lawful authority? A baptized person is separated from full incorporation in the Mystical Body by lawful authority when he incurs one of the more severe forms of excommunication.