Eisenberg attended Tennessee Wesleyan Junior College, the University of Chattanooga, Garrett Theological Seminary, and Boston University School of Theology. He holds the degrees of Bachelor of Arts, Bachelor of Divinity, and Master of Sacred Theology. He has done further study at Peabody College and Yale Divinity School. Following secular employment he served in several church staff positions in the Methodist Church, as missionary to Rhodesia, and as pastor of six congregations. He is now retired.