The correct term is theocratic, always with an accent . It refers to the power of religion or the governmental regime based on religion and its representatives. Literally, it means the power of God.
The rulers were at the same time political and religious heads
Theocratic: is relative to the power of religion theocracy i.e. priests to exercise the power of religion through TEO = God cratos which means power
Teo = DiosCratos = Government = Government of God