Where does the phrase separation of church and state come from

Question

Where does the phrase separation of church and state come from

The declaration of independence
The first amendment to the constitution
A letter Jefferson wrote to the Danbury Baptist
A speech Jefferson gave to the congregational church

Answer 1

Where does the phrase separation of church and state come from

The phrase "separation of church and state" comes from a letter Thomas Jefferson wrote to the Danbury Baptist Association in 1802.