The American Family Association is calling for divine intervention in the upcoming marriage cases before the Supreme Court, telling its members in a recently released prayer guide that the court’s marriage equality ruling will be “the most important decision in the history of America.”

The AFA’s prayer guide [PDF] urges readers to ask God to spare America from His wrath if the Supreme Court strikes down bans on same-sex marriage, claiming that such a ruling would be inspired by Satanic influences.

“Heavenly Father, we acknowledge that our battle is not against flesh and blood but against the spiritual forces of wickedness in the heavenly places,” the prayer guide reads. “We know that Satan hates all that you are and stand for, and that the attack on marriage and the family comes ultimately from him. We know he is a deceiver, a liar and the father of all lies, and we know that many in our culture have believed his lies about sexuality, including members of our Supreme Court. We pray that your Spirit will reveal to each of these justices every lie they have believed, whether that lie comes from the world, their own flesh, or the devil himself.”