Three grades of ordained ministry were recognised: bishop, priest, and deacon. Ministers could be reassigned from one congregation to another by word of prophecy, except for inducted bishops who were considered to be "married" to the congregation of which they had charge. Each rank had different vestments to differentiate their function. It also occurred that people would be called to an office (say, that of priest) but would fulfil a lower rank (say, that of deacon) until it became clear where they would serve. This clarification was either prophetic or practical in character—if a priest was needed somewhere such a person might be asked to take up the role, or a special mission might be accorded.