Which of those seven churches were the Bride(s) of Christ?
You can find the named churches and each doctrine recorded in Chapter 2 and 3 of Revelation.
Wonder what it means that way back in Jeremiah's time he recorded the following? Jeremiah 3:8 And I saw, when for all the causes whereby backsliding Israel committed adultery I had put her away, and given her a bill of divorce; yet her treacherous sister Judah feared not, but went and played the harlot also.
Wonder when this wedding took place?