By the time of the writing of the Constitution, the only organizations who had large organized and equipped armies to fight and spill blood, was the State, not the Church. The Roman Catholic Church once controlled the states of Europe, from about 400 AD to about 1500AD. Europe was once unified like the Euro-dream of today. The Church had organized Europe, with blood mostly spilled via state politics and the Middle East.
When the Catholic Church started to divide, around 1500, i.e., Martin Luther, States started to control their own Churches. This transition to state run religion times out with the age of exploration, as nearly all the European nations staked claims in the new World, and had new money to build and support armies.
The Pilgrims left England to avoid the State run Religion of the King of England. Over a 100 yeas later, the Constitution was written to evolve the State and Religion away from the big centralized entity of the original Church, was well as state run political church and give the church to the people. The people do not own armies, nor can they tax, make and/or enforce laws, without going through a long winded Democratic process.
The left wants the State to regain control of religion so they can control people and start conflicts. This is regressive to the stages of church evolution, since individual pursuit is the ideal; inner voice instead of mass mind mob.
Picture if the left, using the political dirty tricks of its leadership and fake news CNN, had control over the Church. Then could expand their angry hate mob into a religious war, backed by scriptures, that would justify spilling blood. Because the Church remains separate, a second opinion is available, that can transcend the sickness. This is what the Madison saw as the solution to the wars within the once unified Europe. The left tries to neutralized the second opinion.