I'm not sure myself. I think the point may be that just as certain Christian denominations have accommodated themselves to more liberal secular law allowing divorce and remarriage, so Christian denominations will probably accommodate themselves to changes in secular law regarding same sex marriage.
Freedom is merely privilege extended, unless enjoyed by one and all. — Billy Bragg
Since this decision is just about whether Ermold and Moore (the plaintiffs) are entitled to have their suit heard in court to begin with, I'd think that the SCOTUS might wait until the actual case itself is heard and decided.
But I've thunk wrong before.
Freedom is merely privilege extended, unless enjoyed by one and all. — Billy Bragg