Isaac of Stella was an English-born Cistercian who studied in the schools before entering monastic life and becoming abbot of Stella in 1147. His liturgical sermons inject a speculative philosophical inquisitiveness into imaginative meditations on scenes from Scripture. This present volume includes sermons 27–55, along with three fragments. In these sermons, while treating biblical passages corresponding to the major feasts of the Christian calendar, Isaac tackles weighty dogmatic issues such as predestination, the problem of evil, and Christ’s two natures.