to Confession, knowing well enough he is not sufficiently prepared: For altho' there be diffe∣rence between concealing and forgetting a Sin in Confession; and that forgetfulness doth not make the Confession invalid; yet this is to be under∣stood only, when the forgetfulness is not volun∣tary or caused by our negligence: for when we are the cause of such forgetfulness, it is certain it is a Sin, which renders the Confession null, by the rule that he who desires the cause, is judged also to desire the effect, which infallibly follows it.
As to the sorrow for Sins, there are many cases wherein the Penitent may want it to that de∣gree, that the Sacrament is null thereby.
First, when one has made no act, neither be∣fore nor during Confession, nor before he re∣ceives Absolution: In this case the Confession is invalid, altho' it may proceed from a pure for∣getfulness, that they did not perform that acti∣on; because it is essential and absolutely necessa∣ry for the Sacrament, and which cannot be sup∣plied by any other action.
Secondly, when one makes those acts, but without due conditions: as without supernatu∣ral motives, or with a reserve or exception of some Mortal Sin, for which one hath a complai∣sance or affection; in a word, without the Con∣ditions we have spoken of before in the second Part, fourth Chapter; which you must reade o∣ver again in this place.
Thirdly, when one hath not a sincere resolu∣tion of amendment, altho' he believes he hath; this is judged to happen, when the Penitent will not leave the occasion of Sin, practice the necessary remedies, obey his Confessour in reasonable things.