Peter Lombard on God’s Knowledge and Its Capacities: Sententiae, Book I, Distinctions 38-39




Peter Lombard, Book of Sentences, medieval scholasticism, God’s knowledge, foreknowledge, necessity, possibility, free will


The global Peter Lombard research reinaugurated in 1990s has resulted in a number of recent publications, but the Master of the Sentences’ theology proper is partially underreseached. In particular, a more detailed exposition of the distinctions 35-41 of his Book of Sentences is needed in order to clarify his doctrine of God’s knowledge and its relation to the human free will. The article builds on the earlier established evidence that, for Peter Lombard in distinctions 35-38, God’s knowledge, in general, is not causative, although some causative power has to be ascribed to God’s knowledge of the good. The last part of distinction 38 and the content of distinction 39 further analyze the capacities and functionalities of the divine omniscience and explain how it interacts with acts of human will. The key question here deals with the problem of alternative states of affairs: whether something may be otherwise than God foreknew. As it is shown, Master Peter agrees that it is possible for created things and events to be otherwise than they are, but insists that God’s knowledge must be in any case exhaustive and infallible. He uses a number of logical tools to defend the thesis about God’s perfect knowledge and the possibility of things happening otherwise, but lacks strict definition of the notion of “possibility” used here. The study concludes that in few cases Lombard’s posse could mean a potency or a simple logical possibility, or the diachronic contingency, but the overall theological statement is clear: potentially, God’s knowledge can be different or include alternative state of affairs but it cannot change. 

Author Biography

Rostislav Tkachenko, Evangelische Theologische Faculteit, Leuven (Belgium)

Th.M., Ph.D. candidate and Affiliated Researcher


Clark, M. J. (2005). Peter Comestor and Peter Lombard: Brothers in Deed. Traditio, 60, 85-142.

Colish, M. L. (1994). Peter Lombard (Vol. 2). Leiden, New York, & Köln: Brill.

Evans, G. R., & Rosemann, P. W. (Eds.). (2002). Mediaeval Commentaries on the Sentences of Peter Lombard (Vols. 1-3). Leiden, & Boston: Brill.

Finn, T. M. (2008). The Sacramental World in the Sentences of Peter Lombard. Theological Studies, 69(3), 557-582.

Kitanov, S. V. (2014). Beatific Enjoyment in Medieval Scholastic Debates: The Complex Legacy of Saint Augustine and Peter Lombard. Lanham: Lexington Books.

Knuuttila, S. (1981). Time and Modality in Scholasticism. In S. Knuuttila (Ed.), Reforging the Great Chain of Being: Studies of the History of Modal Theories (pp. 163-257). Dordrecht: Springer.

Knuuttila, S. (1993). Modalities in Medieval Philosophy. London, & New York: Routledge.

Knuuttila, S. (2017, April 19). Medieval Theories of Modality. Retrieved from The Stanford Encyclopedia of Philosophy website:

Larson, A. A. (2013). The Reception of Gratian’s Tractatus de penitentia and the Relationship between Canon Law and Theology in the Second Half of the Twelfth Century. Journal of Religious History, 37(4), 457-473.

Larson, A. A. (2014). From One Master to Another: Peter Lombard’s Usage of Gratian’s De penitentia. In Larson, A. A., Master of penance Gratian and the development of penitential thought and law in the twelfth century (pp. 315-342). Washington, DC: Catholic University of America Press.

Luscombe, D. E. (1969). The School of Peter Abelard: The Influence of Abelard’s Thought in the Early Scholastic Period. Cambridge: Cambridge UP.

Marenbon, J. (2007). Medieval Philosophy: An Historical and Philosophical Introduction. London: Routledge.

McMullin, E. (2007). Galileo and Peter Lombard. History Ireland, 15(4), 22-26.

Miner, R. (2017). Thomas Aquinas’s Hopeful Transformation of Peter Lombard’s Four Fears. Speculum, 92(4), 963-975.

Monagle, C. (2013). Theology, Practice, and Policy at the Turn of the Thirteenth Century: the Papacy and Peter Lombard. Journal of Religious History, 37(4), 441-456.

Peter Lombard. (2007). The Sentences. Book 1: The Mystery of the Trinity. (G. Silano, Trans.) (Vol. 1). Toronto: PIMS.

Peter Lombard. (2014). The Complete Text of Lombard’s First Book of Sentences: Book I - On the One and Triune God (Vol. 1). (A. Bugnolo, Ed. & Trans.). Mansfield, MA: The Franciscan Archive.

Petrus Lombardus. (1882). Magistri Petri Lombardi Sententiae in quatuor libris distinctae. Primus liber sentientiarum: De Deo unitate et trinitate (Vol. 1). Ad Claras Aquas (Quaracchi), prope Florentiam: Ex typographia Collegii S. Bonaventurae.

Petrus Lombardus. (1971). Magistri Petri Lombardi Parisiensis episcopi Sententiae in IV libris distinctae (Vol. 1). (I. C. Brady, Ed.). Grottaferrata: Editiones Collegii S. Bonaventurae ad Claras Aquas.

Rosemann, P. W. (2004). Peter Lombard. New York, NY: Oxford UP.

Rosemann, P. W. (2005). New Interest in Peter Lombard: The Current State of Research and Some Desiderata for the Future. Recherches de théologie et philosophie médiévales, 72(1), 133-152.

Rosemann, P. W. (2007). The Story of a Great Medieval Book: Peter Lombard’s Sentences. Peterborough, Ontario, Canada: Broadview Press.

Rosemann, P. W. (2012). Sacra pagina or scientia divina? Peter Lombard, Thomas Aquinas and the nature of the theological project. In J. McEvoy, M. Dunne, & J. Hynes (Eds.), Thomas Aquinas: Teacher and Scholar. The Aquinas lectures at Maynooth, volume 2: 2002-2010 (pp. 50-70). Dublin: Four Courts Press.

Rosemann, P. W. (2017). Peter Lombard [on the Saraments]. In J. S. Holcomb, & D. A. Johnson (Eds.), Christian Theologies of the Sacraments: A Comparative Introduction (pp. 59-80). New York: New York UP.

Tkachenko, R. (2017). Peter Lombard on God’s Knowledge: Sententiae, Book I, Distinctions 35-38, as the Basis for Later Theological Discussions. Sententiae, 36(1), 17-31.

Vos, A. (2006). The Philosophy of John Duns Scotus. Edinburgh: Edinburgh UP.

West, J. L. A. (2007). Aquinas on Peter Lombard and the Metaphysical Status of Christ’s Human Nature. Gregorianum, 88(3), 557-586.

Zahnd, U. (2014). III: Latin Philosophy. Section 2: Commentaries on Peter Lombard’s Sentences. Bulletin de philosophie médiévale, 56, 3-5.


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How to Cite

Tkachenko, R. (2018). Peter Lombard on God’s Knowledge and Its Capacities: Sententiae, Book I, Distinctions 38-39. Sententiae, 37(1), 6–18.






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