Mendle is an ordained minister of the United Church of Christ with degrees from Indiana Wesleyan University, Christian Theological Seminary, Aquinas College and Harvard University. He received his doctorate of sacred letters from Temple Bible College & Seminary of Cincinnati, Ohio.
Mendle has pastored churches in Indiana, North Dakota, Kansas, Oklahoma, Kentucky and Ohio. While serving as Ecumenical Campus Minister at Oklahoma State University, professor Adams received training and certification from the Supreme Court of Oklahoma for training of Mediators for the Oklahoma Justice System. His ministries have included travels to Palestine/Israel, The Philippines, Nicaragua, and the Ukraine. He is a published co-author of the text book Touching Center: Adventures in Christ Consciousness.