Article III: On the Dangers of Faith

There are especially three things which bring danger to faith, namely: 1. liberty of worships conceded by a prince; 2. communication with heretics or unbelievers; 3. reading of depraved books.

In voluntarily incurring these dangers there is given a fault of imprudence, which nevertheless is not always mortal, nor opposed to faith; and therefore it does not necessarily expel the habit of faith (Tanquerey, I, 655-659). If the imprudence is against faith, from the fact that someone proximately exposes himself to danger, there will be present a grave sin of infidelity.