A Topic of Moral Theology
The cause of grace
The cause of grace, as treated in Billuart (On the Essence and Division of Grace).
The works themselves ask 5 questions under this heading — see them together with their answers.
In the index as Sacrament · Things · Disposition · Original sin · Circumcision · Confirmation · Grace · Grace, cause of · Merits · Satisfactions
In the manuals
Read the manuals side by side → — each work's whole treatment in its own column
Summa Theologiae Moralis
Vol. III, Special Moral Theology: On…, Treatise: On the Sacrament…, Third Part: On the Effects…, Ch. I, Question Two: On the Mode by Which the Sacraments Cause Grace, n. 41 (6 passages — hover a number to read it)
Vol. III, Special Moral Theology: On…, Treatise: On the Sacrament…, Third Part: On the Effects…, Ch. I, Question Two: On the Mode …, Article I: On the Causality of the Sacraments Properly So Called and Efficient, nn. ¶1, 42, 43 & 44 (15 passages — hover a number to read it)
Vol. III, Special Moral Theology: On…, Treatise: On the Sacrament…, Third Part: On the Effects…, Ch. I, Question Two: On the Mode …, Article II: On the Instrumental Causality of the Sacraments, nn. ¶1, 45, 46, 47 & 48 (39 passages — hover a number to read it)
Vol. III, Special Moral Theology: On…, Treatise: On the Sacrament…, Third Part: On the Effects…, Ch. I, Question Two: On the Mode …, Article III: On the Causative Power of the Sacraments, nn. ¶1, 49, 50, 51 & 52 (12 passages — hover a number to read it)
Vol. III, Special Moral Theology: On…, Treatise: On the Sacrament…, Third Part: On the Effects…, Ch. I, Question Two: On the Mode …, Article IV: On the Causality of the Sacraments of the Old Law, nn. ¶1, 53, 54 & 55 (12 passages — hover a number to read it)
Summa Summae S. Thomae (Billuart)
Billuart, Summa Summae, Tomus II. On the Prima Sec…, On Grace, On the Essence and Divisio…, On the cause of grace, nn. 1–38 (38 passages)
Treated under the broader heading The Essence and Divisions of Grace — Slater, Foundation — this work does not divide the matter as finely as we do here, so its treatment stands one heading up (ed.)