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https://equip.sbts.edu/article/bookstore-event-christ-crucified-a-presentation-by-tom-schreiner-on-the-theology-of-galatians/

An brief overview of the Book of Galatians by Dr. Thom Schreiner. Fast-forward the video to the 2:40 mark to skip the speaker's presentation on the Lifeway series on New Testament books. 

Thomas R. Schreiner James Buchanan Harrison Professor of New Testament Interpretation and Professor of Biblical Theology; Associate Dean, School of Theology