Answer: Separation of church and state
Explanation: Separation of church and state" is a common metaphor that is well recognized. Equally well recognized is the metaphorical meaning of the church staying out of the state's business and the state staying out of the church's business. Because of the very common usage of the "separation of church and state phrase," most people incorrectly think the phrase is in the constitution. The phrase "wall of separation between the church and the state" was originally coined by Thomas Jefferson in a letter to the Danbury Baptists on January 1, 1802. His purpose in this letter was to assuage the fears of the Danbury, Connecticut Baptists, and so he told them that this wall had been erected to protect them. The metaphor was used exclusively to keep the state out of the church's business, not to keep the church out of the state's business.
