ELMER JOHN THIESSEN taught at Medicine Hat College (Alberta, Canada) for thirty-six years. He is currently Adjunct Professor of Philosophy at Emmanuel Bible College. He is author of The Ethics of E...ver maisELMER JOHN THIESSEN taught at Medicine Hat College (Alberta, Canada) for thirty-six years. He is currently Adjunct Professor of Philosophy at Emmanuel Bible College. He is author of The Ethics of Evangelism: A Philosophical Defense of Proselytizing and Persuasion (2011).ver menos