Not to beat a dead horse, but are you kidding me with this ad?

Separation of church and state is a political and legal idea usually identified with the First Amendment to the United States Constitution, which states that Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof… The phrase building a wall of separation between church and state was written by Thomas Jefferson in a January 1, 1802 letter to the Danbury Baptist Association.