Final answer:
The First Amendment protects the free exercise of religion but allows government intervention when religious practices harm others or violate public safety, as is the case with practices like human sacrifice.
Step-by-step explanation:
The First Amendment to the United States Constitution is central to the discussion of religious freedom and government intervention. While the Amendment protects the right to free exercise of religion, it is not absolute. Government can intervene when religious practices violate public morals, endanger health, or impair public safety. This concept is evident with practices like human sacrifice, which are prohibited despite being rooted in religious belief, due to the direct harm they cause to others and the violation of their rights. The balance between religious freedom and public interest has often been a delicate issue, navigated through court rulings over time.