The Rev. Dr. Matthew C. Harrison, president of The Lutheran Church—Missouri Synod (LCMS), delivers the keynote address, “Why and How the Church Engages: Witness, Mercy and Our Life Together in View of the Public Square,” at the first-ever LCMS Life Conference, Jan. 25-26, 2013, at the Hyatt Regency Crystal City Hotel, Arlington, Va. This video offers excerpts from the presentation.