Chapter 17 [XV.]—What is Sinless in the Use of Matrimony? What is Attended With Venial Sin, and What with Mortal?
It is, however, one thing for married persons to have intercourse only for the wish to beget children, which is not sinful: it is another thing for them to desire carnal pleasure in cohabitation, but with the spouse only, which involves venial sin. For although propagation of offspring is not the motive of the intercourse, there is still no attempt to prevent such propagation, either by wrong desire or evil appliance. They who resort to these, although called by the name of spouses, are really not such; they retain no vestige of true matrimony, but pretend the honourable designation as a cloak for criminal conduct. Having also proceeded so far, they are betrayed into exposing their children, which are born against their will. They hate to nourish and retain those whom they were afraid they would beget. This infliction of cruelty on their offspring so reluctantly begotten, unmasks the sin which they had practised in darkness, and drags it clearly into the light of day. The open cruelty reproves the concealed sin. Sometimes, indeed, this lustful cruelty, or, if you please, cruel lust, resorts to such extravagant methods as to use poisonous drugs to secure barrenness; or else, if unsuccessful in this, to destroy the conceived seed by some means previous to birth, preferring that its offspring should rather perish than receive vitality; or if it was advancing to life within the womb, should be slain before it was born. Well, if both parties alike are so flagitious, they are not husband and wife; and if such were their character from the beginning, they have not come together by wedlock but by debauchery. But if the two are not alike in such sin, I boldly declare either that the woman is, so to say, the husband’s harlot; or the man the wife’s adulterer.
CAPUT XV.
17. In usu conjugis quid sine culpa, quid cum veniali culpa, quid cum mortali. Sed tamen aliud est, non concumbere nisi sola voluntate generandi, quod non habet culpam; aliud, carnis concumbendo appetere voluptatem, sed non praeter conjugem, quod venialem habet culpam. Quia etsi non causa propagandae prolis concumbitur, non tamen hujus libidinis causa propagationi prolis obsistitur, sive voto malo, sive opere malo. Nam qui hoc faciunt quamvis vocentur conjuges, non sunt, nec ullam nuptiarum retinent veritatem, sed honestum nomen velandae turpitudini obtendunt . Produntur autem quando eo usque progrediuntur, ut exponant filios, qui nascuntur invitis . Oderunt enim nutrire vel habere, quos gignere metuebant. Itaque cum in suos saevit, quos nolens genuit tenebrosa iniquitas, clara iniquitate in lucem promitur, et occulta turpitudo manifesta crudelitate convincitur. Aliquando eo usque pervenit haec libidinosa crudelitas, vel libido crudelis, 0424 ut etiam sterilitatis venena procuret; et si nihil valuerit , conceptos fetus aliquo modo intra viscera exstinguat ac fundat, volendo suam prolem prius interire quam vivere; aut si in utero jam vivebat, occidi antequam nasci. Prorsus si ambo tales sunt, conjuges non sunt: et si ab initio tales fuerunt, non sibi per connubium, sed per stuprum potius convenerunt. Si autem non ambo sunt tales, audeo dicere, aut illa est quodammodo meretrix mariti, aut ille adulter uxoris.