Dea received his Bachelor of Theology degree from LIFE Bible College, Los Angeles, California (Now “Life Pacific University”, San Dimas, California).

He has worked with youth for several years while in Bible College and after graduation. He was the minister of youth for two churches and was a frequent camp speaker

Dea pastored a total of 15 years, in California and in the Northwestern States. He also planted churches in Fruitland, Idaho; Lakeview, Oregon and Walla Walla, Washington.

He helped the Foursquare Missionaries in Costa Rica plant a new church in the city of Puerto Limon and held missionary crusades in France and India.

Dea has preached in all 50 states of the USA and has been a full-time evangelist since 1995. He also led a team of 12 all over the Northwestern States holding evangelistic Crusades.

He has ministered on radio and television, in tent crusades, and on college campuses. Dea has trained church groups in personal evangelism methods, served as guest Bible College lecturer, trained pastors, and has held divine healing crusades, revival services, and prayer conferences.