This is found best in 4SP 229-241
Revelation 14:8 “And there followed another angel, saying, Babylon is fallen, is fallen, that great city, because she made all nations drink of the wine of the wrath of her fornication.”
2nd Angel’s Message – Righteousness. The Saints are only “Gold” for Gold is “God” and Purity/Perfection whereas the Tin – Sin has gone as Brass is an Alloy of Tin and Copper, and Brass is “Courtyard” material and not Holy/Most Holy Place material. The Saint has developed further from being a Sinner to being Forgiven, they have moved into the Holy Place and a basic Relationship before moving into the Most Holy Place and having an intimate one on one relationship.
This is a reflection of the “Feast of Trumpets” Last 10 Days, a warning of a need for a perfect and sinless life as time has just on run out. There is a warning of the Moral fall, Complacency, or Slumber of the Laodicean Churches – Fallen, Fallen.
We are now admonished to remain Pure and True to your Marriage Vows to Jesus Christ and to his word (Bible). No more Fornication or Adultery, as the redeemed have only pure doctrines, a “God Said” and not a “but I Say” and the message still repeats that a Judgement is coming.