Source
Evil spirits like to remain in the locality where they have established strongholds. The Bible gives us an example of this in Mark chapter 5 when Jesus delivered the madman of Gadara. The evil spirits that inhabited the man didn’t want Jesus to send them out of the country.
Text:MARK6:9-13
9 And he asked him, What is thy name? And he answered, saying, My name is Legion: for we are many.
10 And he BESOUGHT HIM MUCH that he would NOT send them away OUT OF THE COUNTRY.
11 Now there was there nigh unto the mountains a great herd of swine feeding.
12 And all the devils besought him, saying, Send us into the swine, that we may enter into them.
13 And forthwith Jesus gave them leave
Those evil spirits didn’t want to leave that locality, so they asked to go into a herd of swine. Jesus gave them permission
Strongholds in Certain Regions
We can glean from this passage of Scripture that demons do like to gang up in certain parts of the world or in certain countries. For example, in my travels it’s easy for me to discern what kinds of spirits are in a given locality.
I can drive through a city and know what spirits predominate there, not because of any spiritual gifts operating in my life, but just by spiritual perception.
Every Christian should have enough spiritual perception about them to discern what spirits predominate in a given locality. Sometimes there are predominately immoral or occult spirits, or spirits promoting foreign religions. Small towns, not just large cities, can have spiritual strongholds or spirits ruling over them too.
The evil spirits that dominate a city will try to get into the local churches if there are people in the church who will yield to them and let them in.
Let’s find out what the Bible says and base our strategy against the kingdom of darkness on scriptural grounds so we van win the lost in the world for Jesus!
Search the Scriptures for yourself. Again and again you will find that Jesus, the twelve disciples, and the Apostle Paul taught believers to preach the Word.
They taught about the Name of Jesus, and the authority believers have in that Name over all the powers of darkness. They taught believers to stand strong in faith in God’s Word because it’s the Word that dispels strongholds in people’s lives and thinking. The anointing on the Word has the power to break any demonic bondage!
There's no such thing as strongholds in people's lives or thinking.
The demons weren't concerned about being forced to leave the area. They didn't want to be sent into the Abyss.
(Luke 8:30-31 NIV) Jesus asked him, "What is your name?" "Legion," he replied, because many demons had gone into him. {31} And they begged him repeatedly not to order them to go into the Abyss.
No, evil spirits won't dominate a city if people let them into the church. That's ridiculous. There's nothing in the Bible to suggest that.
No, you can't drive through a city and know what kind of spirits are there. There are demons everywhere. The Bible mentions demons that were in charge of the demons in entire countries. It would make sense that there are demons at work at the city, county, and state level. As well as in universities.
There's no difference between spirits that are immoral or occult or those promoting different religions. They're all demons under the authority of Satan. Everyone of them wants people to be immoral, to be involved in occult activities and to follow other religions.
What is your point exactly @barncat, try to read it through again to get the mental picture....