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Erskine Theological Seminary professor Hughes Oliphant Old says no. In volume 7 of his history of preaching, The Reading and Preaching of the Scriptures in the Worship of the Christian Church, he lists Chrysostom, Augustine, and Origen as having done it previously. He also implies that many others had probably done so given the ubiquity and appropriateness of expository preaching in general, going back to the apostles. The discussion can be found on page 172.