I grew up with a church system that had two bodies, one tasked with spiritual and the other tasked with temporal matters.
It is not a helpful distinction in so far as everything is spiritual and practical. At its worst the ‘temporal’ body can use its power to veto the plans of the ‘spiritual’ body, effectively putting themselves in charge. At its best the ‘spiritual’ body works with the ‘temporal’ body in developing plans and the ‘temporal’ body sees its role as enabling the decisions of the ‘spiritual’ body, not as determining whether they should happen.
Our system allows for members of the ‘spiritual’ body to be automatic members of the ‘temporal’ body, which generally means they could get their way if they wanted, but, from a governance perspective, the notion that control of what happens rests with the ‘temporal’ body creates an unproductive dynamic that is resistant to change and protects the status-quo.
From Dan Hotchkiss:
Some congregations have two, or even three, top boards, all responsible directly to the congregation. Sometimes the division reflects an old-fashioned mom-and-pop dualism: The board of trustees (pop) controls the money, while a program board (mom) does most Of the work. Sometimes one board is said to be responsible for the “business” aspect of the congregation, while the other takes charge of the “spiritual” part. Have I made it clear yet that I don’t like this way of splitting up the universe? Whoever controls “business” ends up having ultimate control of spiritual matters also.
Dan Hotchkiss, Governance And Ministry, Rowland & Littlefield, 2016, pg 44.