The constitution of the United States is to receive a reasonable interpretation of its language, and its powers, keeping in view the objects and purposes, for which those powers were conferred. By a reasonable interpretation, we mean, that in case the words are susceptible of two different senses, the one strict, the other more enlarged, that should be adopted, which is most consonant with the apparent objects and intent of the Constitution.

It was under a solemn consciousness of the dangers from ecclesiastical ambition, the bigotry of spiritual pride, and the intolerance of sects... that is was deemed advisable to exclude from the national government all power to act upon the subject.

The real object of the First Amendment was not to countenance, much less advance Mohammedanism, or Judaism or infidelity, by prostrating Christianity; but ... to prevent any national ecclesiastical establishment which should give to a hierarchy the exclusive patronage of the national government.

Temporary delusions, prejudices, excitements, and objects have irresistible influence in mere questions of policy. And the policy of one age may ill suit the wishes or the policy of another. The constitution is not subject to such fluctuations. It is to have a fixed, uniform, permanent construction. It should be, so far at least as human infirmity will allow, not dependent upon the passions or parties of particular times, but the same yesterday, to-day, and for ever.

Republics are created by the virtue, public spirit, and intelligence of the citizens. They fall, when the wise are banished from the public councils, because they dare to be honest, and the profligate are rewarded, because they flatter the people, in order to betray them.

The militia is the natural defense of a free country against sudden foreign invasions, domestic insurrections, and domestic usurpations of power by rulers. It is against sound policy for a free people to keep up large military establishments and standing armies in time of peace, both from the enormous expenses, with which they are attended, and the facile means, which they afford to ambitious and unprincipled rulers, to subvert the government, or trample upon the rights of the people.

[I]t is impossible for those, who believe in the truth of Christianity, as a divine revelation, to doubt, that it is the especial duty of government to foster, and encourage it among all the citizens and subjects. This is a point wholly distinct from that of the right of private judgment in matters of religion, and of the freedom of public worship according to the dictates of one's conscience.