You are hereUCG.org / Sermons / Is Smoking a Sin? Is Smoking a Sin? Given on Nov 12, 2011 by Bill Cowan Listen Downloads MP3 Audio (14.48 MB) Downloads Is Smoking a Sin? MP3 Audio (14.48 MB) × Why is smoking a sin? Bill Cowan applies biblical principles to show why Christians should not smoke. Bill CowanElder, United Church of GodBill Cowan is an elder serving the United Church of God congregation in Chattanooga, Tennessee.