Justice
William O. Douglas delivered the opinion of the Court. The court held that the ordinance was an unconstitutional tax on the Jehovah's Witnesses' right to freely exercise their religion. The petitioners used the distribution of pamphlets and brochures as a form of missionary activity with an evangelical purpose. Not all behavior could be allowed by claiming that it was a religious activity. The only hold that spreading one's religious beliefs or preaching the Gospel by distribution of religious literature and personal visitations is an age-old type of evangelism, with as high a claim to constitutional protection as the more orthodox types. If the activity were done to raise money, it would be commercial and could be taxed. However, in this case, although donations were sought, the activity served a religious function. Religions are not entirely free from facing financial burdens from the government. It is one thing to impose a tax on the income or property of a preacher. It is quite another thing to exact a tax from him for the privilege of delivering a sermon. If the exercise can be taxed, the government is capable of making it prohibitively expensive and could be done only by the wealthy. The state claimed that argument was unimportant because the tax was not expensive in practice. It is a license tax, a flat tax imposed on the exercise of a privilege recognized by the Bill of Rights. A state may not impose a charge for the enjoyment of a right protected by the federal constitution. The fact that the ordinance was imposed indiscriminately does not save it from being unconstitutional. The case also established the preferred position doctrine, which states that of press, freedom of speech, [and] freedom of religion are in a preferred position", indicating that certain fundamental human rights have prerogative. == Effects ==