The Rapture of His Bride: Opening of the Sixth Seal & The Blood Moon Cataclysmic Events

Is Jesus coming back for a church, or is He coming back for His Bride. Suppose the letters written to the Seven Churches of Asia were written for the purpose of discerning who that Bride is? Only one of those churches had no concerns...and only one was told that they would be Raptured and kept from the Tribulation.