Jason Gaddis was saved at the age of eight at Grace Baptist Church, Bowling Green, Kentucky. He surrendered to the call to preach at the age of fifteen at youth camp. He graduated from Baptist Bible College in Springfield, Missouri, in 1998 and the Baptist Bible Graduate School of Theology in 2001.

Bro. Jason and his family came on staff at Southwest Baptist Church in August 2003 to serve as College and Career Director. During his seven years on staff, the Lord allowed him many opportunities to get acquainted with the people here and gain experience in the ministry as he was mentored by his pastor, Sam Davison. On May 3, 2009, Southwest Baptist Church called him as the next pastor effective May 2, 2010, upon the resignation of Sam Davison. The church has continued to move forward under the leadership of Pastor Gaddis.

Pastor Gaddis and his wife, Angie, were married on June 6, 1998, and have three sons: Tyler, Trevor, and Trenton. He currently serves as President of Heartland Baptist Bible College, and teaches several undergraduate and graduate-level classes there. He also preaches at youth conferences, camps, and other meetings across the U.S. and in foreign countries.