In September 2007, Webster delivered the inaugural lectures of the Kantzer Lectures in Revealed Theology moderated by Kevin Vanhoozer through the Carl F . H . Henry Center for Theological Understanding at Trinity Evangelical Divinity School in Deerfield, Illinois.
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In 1881 he was chosen as Baird lecturer, and took for his subject " Natural Elements of Revealed Theology ", and in 1882 he was the St Giles lecturer, his subject being " Confucianism ".
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Further on, he divided divine philosophy in natural theology ( or the lessons of God in Nature ) and revealed theology ( or the lessons of God in the sacred scriptures ), and natural philosophy in physics, metaphysics, mathematics ( which included music, astronomy, geography, architecture, engineering ), and medicine.