1. The unalterable religious historical truth you are referring to called holy matrimony.
2. Then later they sign a contract to form a civil union recognized by the state. This civil union is called a marriage license.
I would argue that government has no right at ANY level, local, state, or federal to interfere with #1.
And that #2 should be left up to the states.
And you would be wrong.
You’re not hearing what I’m saying. The marriage union is not just a spiritual matter. It is the forming of the natural family, therefore it is the formation of the most basic unit of self-government. Which means that the broader government has an existential interest in the matter.