Concerning the course taken by the United States, they have a right to reject this law [law of Celestial Marriage] themselves, as they have a right to reject the Gospel; but it is contrary to the provisions of the constitution, which is the supreme law of the land, for them to prohibit you from obeying it.

Therefore, abide in my law which I have revealed unto you, saith the Lord God, and contend for your rights by every legal and constitutional method and in accordance with the institutions, laws, and Constitution of the United States.

( Source: John Taylor Papers 2:243 )