He also serves as president of Birmingham-Easonian Baptist Bible College, visiting professor at Beeson Divinity School of Samford University, and pastor of Oak Grove Baptist Church in Birmingham. A former president of Selma University in Selma, Alabama, Fallin has taught history at Miles College and is historian for the National Baptist Convention. He is the author of The African American Church in Birmingham, Alabama, 1815-1963: A Shelter in the Storm. Fallin is currently researching his second book entitled Uplifting the People: Black Baptists in Alabama, 1701-2000.