Which amendment protects the freedom of religion in the United States?

The First Amendment to the United States Constitution is fundamental in protecting the freedom of religion. It states that "Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof." This provision ensures that individuals can practice their religion freely without government interference and prevents the government from establishing an official religion.

The other amendments listed do not address freedom of religion. The Second Amendment concerns the right to bear arms, the Third Amendment deals with the quartering of soldiers, and the Fourth Amendment protects against unreasonable searches and seizures, none of which pertain to religious freedoms. The First Amendment's broad protection of various forms of expression, including religious beliefs, plays a crucial role in maintaining the separation of church and state and safeguarding individual liberties in the United States.