Thomas Cajetan

Thomas Cajetan (Tommaso de Vio, 1469–1534) was an Italian Dominican theologian, philosopher, and cardinal. His commentaries on Thomas Aquinas and biblical scholarship shaped Catholic theology during the Reformation.

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Thomas Aquinas: A medieval Dominican theologian whose synthesis of Aristotelian philosophy and Christian doctrine became central to Catholic theology. Cajetan’s extensive commentaries helped establish Aquinas as a continuing authority in Catholic theology.
Thomism: The philosophical and theological tradition rooted in the writings of Thomas Aquinas. Cajetan became one of the most influential interpreters of Aquinas within this tradition.
Commentary on the Summa Theologiae: Cajetan’s extensive sixteenth-century explanation of Thomas Aquinas’s Summa Theologiae. This work became a major guide to reading Aquinas and a foundation of Cajetan’s Thomist reputation.
Conciliarism: The theory that a general church council holds authority superior to the pope in certain circumstances. Cajetan rejected the conciliar claim that a council could judge or depose a pope.
Martin Luther: A German theologian whose challenge to indulgences and papal authority helped initiate the Protestant Reformation. Cajetan questioned Luther at Augsburg in 1518 over indulgences and the authority of the Church.
Scholasticism: A medieval method of learning that used systematic argument and close analysis of authoritative texts. Cajetan’s theological works use scholastic methods to interpret Aquinas and resolve doctrinal questions.
Commentary on the Gospel of Matthew: Cajetan’s biblical commentary on the Gospel of Matthew, published in the early sixteenth century. It exemplifies his direct engagement with Scripture rather than reliance on scholastic authorities alone.
Sola scriptura: The Protestant principle that Scripture is the sole infallible rule of Christian faith and practice. Cajetan’s Catholic account of scriptural authority also recognized the Church’s interpretive authority.
Pope Leo X: The pope from 1513 to 1521, whose pontificate encompassed Luther’s early challenge to the Catholic Church. Leo X sent Cajetan to Augsburg as his representative during the dispute with Luther.
Biblical exegesis: The interpretation of biblical texts through linguistic, historical, literary, and theological analysis. Cajetan’s commentaries applied close textual interpretation to books of the Bible.