The separation of church and state doctrine was invented in 1947 in the Everson ruling under Hugo Black. There is no mention of this in the Constitution or the Constitutional convention, and the nation thrived for 175 years before 1947 - precedent and the Constitution militates against this legal usurpation.
Let it be known that this metaphor was extracted from a letter by Jefferson to the Danbury Baptists, who, (now ironically) - were worried about persecution from the govt! Jefferson was a full supporter of the Christian faith and attended services in the CHAMBERS OF CONGRESS! He invited the Marine Corps band to play worship! Some separation!