"The constitutional prohibition against laws respecting an establishment of religion must at least mean that, in this country, it is no part of the business of government to compose official prayers for any group of the American people to recite as part of a religious program carried on by government."

- Justice Hugo Black, from the decision in Engel v. Vitale (1962)
Use the passage to answer the question.
To which clause in the Bill of Rights does this quotation most specifically relate?

This quotation most specifically relates to the Establishment Clause of the First Amendment in the Bill of Rights, which prohibits the government from establishing an official religion or favoring one religion over another.