As it relates to religion, the First Amendment provides: “Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof.” Note that there are two parts: The government is prohibited from creating any establishment of religion. The government also may not interfere with the free exercise of religion. These separate provsions are sometimes referred to as the Establishment Clause and the Free-Exercise Clause. Although the language of the First Amendment refers only to Congress (that is, the federal government), one of the post-Civil War Amendments (the Fourteenth) has been interpreted to make the provisions of the First Amendment applicable to the states as well.