As everyone can see, all well-established empires, countries, counties, republics, cities, and homes have laws that constitute the design and form of their government. In each of those arenas, the laws of justice are at the top, political laws are in second place, and business laws are in third place. If these laws are compared with a human being, the laws of justice constitute the head, political laws the body, and business laws the clothes. This is why business laws can be changed like clothes.
As for the design that God incorporated into the church, it is that God is part of every aspect of the church, and so is our neighbor, for whose sake we are to follow the design. There are as many laws of the design belonging to the church as there are truths in the Word. Laws related to God are to constitute its head, laws related to our neighbor its body, and rituals its clothing.
If the church’s higher laws were not embodied in its rituals, the church would be like a body stripped naked, exposed to the heat in summer and the cold in winter. This would be like taking the walls and vaulted ceilings away from a church building so that the sanctuary, altar, and pulpit stood in the open air exposed to violent forces of different kinds.
from True Christianity, Section 55