Theology, as many Puritans saw it, was a combination of sound doctrine, practical exhortation, and precise method. The Marrow of Sacred Divinity by William Ames, a great favorite in many seventeenth-century Puritan homes, owed much of its reputation to a blend of these ingredients of doctrine, practical divinity, and method. Although Puritan theologians wrote few systematic theologies except for creeds and catechisms, the Marrow is one example of theology from a scholarly Puritan perspective. The writings of Ames with their Congregational theories were most at home in Congregational New England, perhaps, but Puritans in England also read and studied Ames. William Ames, 1576–1633, was born in East Anglia and educated at Christ's College, Cambridge; but he lived for over twenty years in the Netherlands as a religious exile. Like his life, his theology combines English nonconformity and Continental Calvinism.