If I write that letter, then the 2nd sentence indicates that I consider the President the leading authority.
Read this from the Preamble of the Alabama Constitution:
We, the people of the State of Alabama, in order to establish justice, insure domestic tranquillity, and secure the blessings of liberty to ourselves and our posterity, invoking the favor and guidance of Almighty God,do ordain and establish the following Constitution and form of government for the State of Alabama:
I think you can see the parallel.
If the letter recognizes the President as the Authority, then the preamble recognizes Almighty God as the authority.
Moore says his constitution REQUIRES him to recognize the authority of God.
Grammatically, he is correct. It does.
Actually, it doesn't, because the Preamble has ZERO legal value. And Judge Moore knows this.