How do the establishment clause and free exercise clause address religion and government?

The First Amendment to the U.S. Constitution governs the relationship between religion and government through two distinct but complementary clauses: the establishment clause and the free exercise clause.1

The establishment clause forbids the government from establishing a state religion or passing laws that force belief in or provide preference to any specific religion. It serves to maintain a separation between church and state, ensuring the government does not promote one faith over another. Historically, this has led to Supreme Court rulings against mandated prayer or Bible reading in public schools, as well as restrictions on government financial support for religious institutions that create excessive entanglement.213

The free exercise clause prohibits the government from deliberately persecuting or discriminating against religious practices. It ensures that individuals are free to practice their religion in a pluralistic society. While the government cannot single out religious practices for punishment, this clause generally does not exempt religious individuals from neutral, widely applicable laws—such as those prohibiting illegal substances—unless specific legislative exceptions are created.41

Together, these clauses balance the protection of religious liberty with the requirement that the state remain neutral regarding religious matters.1