The 'establishment of religion' clause of the First Amendment means at least this: Neither a state nor the Federal Government can set up a church. Ne… - Hugo Black

The flagrant disregard in the courtroom of elementary standards of proper conduct should not and cannot be tolerated. We believe trial judges confronted with disruptive, contumacious, stubbornly defiant defendants must be given sufficient discretion to meet the circumstances in each case.

History indicates that individual liberty is intermittently subjected to extraordinary perils. Even countries dedicated to government by the people are not free from such cyclical dangers. ... Test oaths are notorious tools of tyranny. When used to shackle the mind they are, or at least they should be, unspeakably odious to a free people. Test oaths are made still more dangerous when combined with bills of attainder which like this Oklahoma statute impose pains and penalties for past lawful associations and utterances.... Governments need and have ample power to punish treasonable acts. But it does not follow that they must have a further power to punish thought and speech as distinguished from acts. Our own free society should never forget that laws which stigmatize and penalize thought and speech of the unorthodox have a way of reaching, ensnaring and silencing many more people than at first intended. We must have freedom of speech for all or we will in the long run have it for none but the cringing and the craven. And I cannot too often repeat my belief that the right to speak on matters of public concern must be wholly free or eventually be wholly lost.

Our Founders were no more willing to let the content of their prayers and their privilege of praying whenever they pleased be influenced by the ballot box than they were to let these vital matters of personal conscience depend upon the succession of monarchs. The First Amendment was added to the Constitution to stand as a guarantee that neither the power nor the prestige of the Federal Government would be used to control, support or influence the kinds of prayer the American people can say -- that the people's religions must not be subjected to the pressures of government for change each time a new political administration is elected to office. Under that Amendment's prohibition against governmental establishment of religion, as reinforced by the provisions of the Fourteenth Amendment, government in this country, be it state or federal, is without power to prescribe by law any particular form of prayer which is to be used as an official prayer in carrying on any program of governmentally sponsored religious activity.