She has been arguing that, as a Christian, she should not have to follow state rules about judicial impartiality.

A judge who cannot separate their religious bias of what is right and wrong from their role as a judge (the impartial arbiter of law as set forth through the political process), isn't just saying the separation of church and state shouldn't apply to marriage. They're also saying they cannot legitimately sit as a judge because they cannot keep personal bias separate from their role as a fair and neutral arbiter. She's telling on herself.