Book II. On Conjugal Chastity in Particular

(St. Thomas, Supplement, q. 49, aa. 4-6; St. Alphonsus, Theologia Moralis, VI, 900-954; Homo Apostolicus, tract XVIII, nn. 35-50).¹

As we noted above, conjugal chastity is that by which spouses exclude the unlawful use of venereal things, but prudently moderate the lawful use. We shall discuss first lawful things, then unlawful things; and in treating lawful things, we shall also explain to what extent they are perhaps obligatory for spouses.

¹ Cf. Sanchez, De matrimonii sacramento, book 9; De Smet, De sponsalibus et Matrimonio, I, nn. 207-248; Vlaming, Praelectiones iuris matrimonii, II, nn. 623-638.

The Marriage Debt

Within this book

Part I. On the Lawful Acts of Spousesnn. 81–103
- Section I. On Conjugal Intercoursenn. 81–100
  - Chapter I. On the Lawfulness of Conjugal Intercoursenn. 81–95
    Article I. On the Endn. 82
    Article II. On Place and Manner, or Positionn. 83
    Article III. On the Absence of an Impedimentnn. 84–88
    § 1. On a Promise Made to the Partnernn. 84–85
    § 2. On a Vow of Chastity
    § 3. On Impotence for Intercoursenn. 86–87
    § 4. On a Doubtfully Valid Marriagen. 88
    Article IV. On the Absence of Harm to Be Avertednn. 89–95
  - Chapter II. On the Obligation of Conjugal Intercoursenn. 96–100
- Section II. On Accessories to Intercoursenn. 101–103
Part II. On the Illicit Acts of Spousesnn. 104–118
Appendix I. On Internal Sins Against Chastitynn. 119–126
- I. On Morose Pleasurenn. 119–121
- II. On Desire and Joynn. 122–126
Appendix II. On Instruction in Relation to Chastitynn. 127–139
- I. Sexual Instructionnn. 127–130
- II. Matrimonial Instructionnn. 131–139
  - In Latinn. 132
  - In Dutchn. 133
  - In Italiann. 134
  - In Frenchn. 135
  - In Germann. 136
  - In Englishn. 137
  - In Spanishn. 138
  - In Portuguesen. 139