Such being the case, no sensible Catholic can imagine that the church needs any physical force against the sects, except to repel actual violence, and protect her in that freedom of speech and possession which is the right of all before the state. What are called religious establishments are needed only where either the state is barbarous or the religion is sectarian. Where the state, in its intrinsic constitution, is in accordance with catholic principles, as in the United States, the church has all she needs or can receive. The state can add nothing more to her power or her security in her moral and spiritual warfare with sectarianism, and any attempt to give her more would only weaken her as against the sects, place her in a false light, partially justify their hostility to her, render effective their declamations against her, mix her up unnecessarily with political changes, interests, and passions, and distract the attention of her ministers from their proper work as churchmen, and impose on them the duties of politicians and statesmen. Where there is nothing in the state hostile to the church, where she is free to act according to her own constitution and laws, and exercise her own discipline on her own spiritual subjects, civil enactments in her favor or against the sects may embarrass or impede her operations, but cannot aid her, for she can advance no farther than she wins the heart and convinces the understanding. A spiritual work can, in the nature of things, be effected only by spiritual means. The church wants freedom in relation to the state--nothing more; for all her power comes immediately from God, without any intervention or mediation of the state.

The United States, constituted in accordance with the real order of things, and founded on principles which have their origin and ground in the principles on which the church herself is founded, can never establish any one of the sects as the religion of the state, for that would violate their political constitution, and array all the other sects, as well as the church herself, against the government. They cannot be called upon to establish the church by law, because she is already in their constitution as far as the state has in itself any relation with religion, and because to establish her in any other sense would be to make her one of the civil institutions of the land, and to bring her under the control of the state, which were equally against her interest and her nature.

The American Republic: Its Constitution, Tendencies, and Destiny — Part 189