God doesn't change. (Malachi 3:6-7) God has a character. God is Holy and separate from sin. Someone seeking God may find God. God doesn't change. What has been going on in the spiritual may have been moving and shifting and changing over time. Lets work towards some understanding.
There may be Major Changes in the spiritual. A Major Change in the spiritual may have been God declaring something. Adam and Eve committed the first sin. God cursed Adam and Eve. Adam became a living being. This would be a Major Change. Major Changes are irreversible. A Major Change may have marked the start of a new Era. Noah and the flood would be a Major Change. Jesus Christ, with his life death and resurrection, that would also be a Major Change.
Minor changes in the spiritual may have been happening in Spiritual Warfare. God is a creator. He created everything. Satan was a liar and a thief. He worked to steal away parts of creation from mankind. Adam was given authority. Satan worked to steal away elements of creation from mankind. Over the last 2000 years or so, there may have been a lot of minor changes over time. A lot of people didn't know what to look for.
Jesus Christ, with his life, death, and resurrection, he changed how the spiritual worked. The only way to the Father is through the son. (John 14:6) Could people come to the Father without the son prior to? This suggests change. Satan was thrown from heave with his angels. This suggests change. Christians were tasked with The Great Commission. They are to spread the Good News.
Over in China or Korea or Japan, sometimes they were "Hermit Kingdoms" to varying degrees. They tended to keep out outsiders. Keeping out Christians, they were under "The Old Law." They may have been under Spiritual Law Before Christ. Given a Christians were spreading the Good News in a Kingdom, said Kingdom or Empire may have been "Marco Poloed." They were under the Old Law. Now they are under the New Law, as in Spiritual Law Anno Domini. This is part of Spiritual Warfare.
Why was Korea or Japan a "Hermit Kingdom?" Spiritually, there may have been a ruler of a Principality, like The Prince of Persia in Daniel 10. There was a demonic ruler of a Principality, and a Kingdom was its playground. Said rulers had a name. It would be a different entity from what a lot of European Christians were used to in their theology.
Sometimes Christians in positions of authority have ceded something to Satan. Satan was a liar and a thief. Around 1200 AD, was a Bishop, Pope, Patriarch, or someone in authority doing the wrong things, and in sin? We may be able to see this looking at history. Sometimes it was public knowledge. Sometimes it was hidden. Given someone in authority was doing wrong, it was a sign of something. He was separate from God, and may have been part of a Cabal, and he ceded something. Men who were supposed to be serving God, in sin, that may have been a sign of a falling away.
In the 17th Century, there were a lot of secret societies flourishing. Was a Bishop, or someone in authority, was he part of a Secret Society? Such men may have been two faced. They were one way in public. They were another way in private. They were a "Dragon." They were schemers. The Occult works to hide away knowledge and understanding. A Bishop, or several, may have used their influence in public to hide away certain things, and then in private, they were into some Occult Ritualism. This is how certain things were ceded to Satan.
What about the Jews? Jews are tied to God by Blood. This never stopped. A Christian is a Jew through a circumcision of the heart. (Romans 2:28) Given false Christians, or "Traditional Christians" going through the motions, given they were oppressing the Jews, they may have ended up hitting some curses from Torah. There had been a falling away. Given the Jews were being wicked, and sowing evil into The Body of Christ, the Jews may have hit some curses from Torah, and ended up oppressed. Talmudic Judaism is Occult. It asserts hidden knowledge. Talmudic Jews in a Christian Society may have worked to hide away knowledge, and lead men into sin; however, they are lesser players in that evil. The worst evil was Christians in positions of authority ceding things to Satan. God judges the false teachers more harshly.
Given we are looking for the worst offenders in Spiritual Warfare, we are looking for Christians who were in authority who were doing wrong. In the Early Church there were Five Holy Sees. There was Rome and Constantinople and Antioch and Jerusalem and Alexandria. Only one of those Holy Sees was left standing. Given people were choosing righteousness and right by God, they may have been blessed and fruitful. Four Holy Sees were oppressed and cut off. This may be a sign that men in positions of authority were doing wrong.
A Biblical generation is 40 years. The character of the French Revolution was Luciferian, that is, anti-Christian in Catholic France, but not necessarily in a Protestant way. The French ended up murdering their King who was anointed in a ceremony hearkening back to Prophet Samuel anointing King Saul. For something like that to happen, there had been a falling away in French Catholicism. This falling away may have been over the prior three generations, with no repentance.
A lot of big ideas were broached here. We are not writing a book. Understanding may take some reflection and prayer. This came to mind based on what was written yesterday in "Building The Kingdom of God."
Addendum -
Question: In the Book of Judges, the Hebrews fell away, were oppressed, and God would send them a Judge. They would find God again for a generation or two. In a Holy See like Alexandria or Antioch, why did they never bounce back?
There are no Prophets in Orthodoxy. That authority was claimed by the Bishops. Were the Bishops doing wrong somewhere? There was no repentance. They are stubborn.
In Christian History, there were a lot of fights over authority. Who has authority? The Emperor? Pope? Patriarch? King? Who has authority? A lot of wrong may have happened in fights over authority.
In Catholicism, if Vatican II was wrong, who has the authority to say? A check on that power may have been The Holy Roman Emperor for a time. In a similar way, given a Patriarch or Bishop in Orthodoxy was wrong, who has the authority to say? There was no repentance in Alexandria or Antioch.
The following is an example of a "Sign of Something." It is from a Wiki Article on Hypatia. She was a famous Alexandrian of that time.
According to Socrates Scholasticus, during the Christian season of Lent in March 415, a mob of Christians under the leadership of a lector named Peter raided Hypatia's carriage as she was travelling home.[95][96][97] They dragged her into a building known as the Kaisarion, a former pagan temple and center of the Roman imperial cult in Alexandria that had been converted into a Christian church.[89][95][97] There, the mob stripped Hypatia naked and murdered her using ostraka,[95][98][99][100] which can either be translated as "roof tiles", "oyster shells" or simply "shards".[95] Damascius adds that they also cut out her eyeballs.[101] They tore her body into pieces and dragged her limbs through the town to a place called Cinarion, where they set them on fire.[95][101][100] (https://en.wikipedia.org/wiki/Hypatia)
That is not the character of Christians. That is not how Christians act. The character of the mob there, is suggests there was evil running through The Body of Christ in Alexandria. A lot of the evil may have started with men in positions of authority doing wrong.
Question: Are there other signs someone in authority was doing wrong?
He who loves his life will lose it, and he who hates his life in this world will keep it for eternal life. 26 If anyone serves Me, let him follow Me; and where I am, there My servant will be also. If anyone serves Me, him My Father will honor. (John 12:25-26)
What cup did Jesus drink from? He walked willingly into his death. He did not love his life. After the Muslims took Constantinople in 1453, The Patriarch of Constantinople blessed or anointed the Sultan. Islam is a cult. Muhammad a false prophet. Early Christians would have rather have been martyred. The Patriarch anointed the Sultan.
There may have been certain irrevocable gifts or blessings in the See of Constantinople. The Patriarch of Constantinople anointed a heathen. That did not start with one man, in one generation. There may have been a few generations there of men in authority doing wrong. The Patriarch anointing the Sultan rather than potentially facing death, that would be a sign of something.
Question: Should Christian be careful critiquing the Church Fathers?
Notice I did not mention a Church Father by name. In Alexandria, we may be able to critique the conduct of the Christians there, and show that their conduct implies wrong doing. I did not mention any Church Fathers by name. There are some pretty horrible curses around some of those Church Fathers that I am vaguely aware of, but skirt through God. Someone should be mindful.