With respect to public acknowledgment of religious belief, it is entirely clear from our nation's historical practices that the Establishment Clause permits this disregard of polytheists and believers in unconcerned deities, just as it permits the disregard of devout atheists.
Scalia's Court: A Legacy of Landmark Opinions and Dissents (ed. Regnery Publishing, 2016) - ISBN: 9781621575337