Israel was prosperous because they told Judah to feed itself, and refused to keep paying for Solomon's harem and horses, Solomon's building projects and merchant ships. Under Solomon, meant forced labor; and his son was a chip off the old block. No wonder God gave the title to the land to Israel, and had Judah hold the crown until Jesus came.
Babylon is Jezebel.
2:18 And unto the angel of the church in Thyatira write; These things saith the Son of God, who hath his eyes like unto a flame of fire, and his feet [are] like fine brass;
2:19 I know thy works, and charity, and service, and faith, and thy patience, and thy works; and the last [to be] more than the first.
2:20 Notwithstanding I have a few things against thee, because thou sufferest
that woman Jezebel, which calleth herself a prophetess, to teach and to seduce my servants to commit fornication, and to eat things sacrificed unto idols.
2:21 And I gave her space to repent of her fornication; and she repented not.
2:22 Behold,
I will cast her into a bed, and them that commit adultery with her into great tribulation, except they repent of their deeds.
2:23
And I will kill her children with death; and all the churches shall know that I am he which searcheth the reins and hearts: and I will give unto every one of you according to your works.
2:24 But unto you I say, and unto the rest in Thyatira, as many as have not this doctrine, and which have not known
the depths of Satan, as they speak; I will put upon you none other burden.
The Seven Churches of Asia
https://bibleatlas.org/regionjpg/thyatira.jpg
Why Asia Minor, on the lands of the aboriginal Ionians, aka Javan?
(Not to be confused with the Greeks, of course.)