Ministers are to be dedicated to God and therefore are not eligible to hold a seat in either House of the Legislature.
Constitution of the State of Tennessee
Article IX Disqualifications
Sections 1 Ineligibility of ministers and priests to seats in legislature.
Whereas Ministers of the Gospel are by their profession, dedicated to God and the care of souls, and ought not to be diverted from the great duties of their functions; therefore, no Minister of the Gospel, or priest of any denomination whatever, shall be eligible to a seat in either House of the Legislature.