Ah, the details of demonic activity is rarely revealed in Scripture which causes backsliding etc.
Since it’s thus subjective based on various experiences from which individuals derive much of their knowledge of it, I tend to avoid it. I tend to speak more of Verse based non-subjective stuff.
For the most part, I understand that sin open doors for demonic activity (“the Devil gets a foothold”) and feeds lies in our minds through “voices” too (though many people hardly realize that sometimes the voice in their head could be demonic which usually seduces them to sin).
When the demons in a person increase due to an increase of sin, the person could eventually be possessed (“legion” for we are many, they said in a case in Scripture too). We as believers should be able to cast the demons out of a person but sometimes it requires more prayer and fasting too as our Blessed Savior revealed.
In 1 Timothy 4, apostle Paul clearly warns of “doctrine of demons” which is based on ‘demonic seduction’ (which I believe is sin and non-written false teachings Which are against what is Written in Holy Scripture).
That’s a reason why I tend to stick to what’s Written in Scripture to avoid any demonization due to believing against Scriptures as the Verse (in 1 Timothy 4) using the phrase “doctrine of demons” could mean this.
What is certain is that believing that God Saves “all men” eventually (1 Timothy 2:4) be it after Judgment in the Lake of Fire to the “age” for some (Matthew 25:46, Matthew 25:31 with Revelation 20:11 – 15) when His Mercy Triumphs over and ends any afterlife Judgment sentence thereafter eventually too (James 2:13) and believers being more special (1 Timothy 4:10) is certainly NOT a doctrine of demons.
In other words, in 1 Timothy 4:1, after warning about a possible demonization (with potential apostasy or backsliding) due to the “doctrine of demons” —-> instead of listing down every type of “doctrine of demons” —–> apostle Paul pens wisely the inspired truth that God is the Savior of all men, with believers being more special (1 Timothy 4:10) as worthy of all acceptance (1 Timothy 4:9) and even Commands to teach things pertaining to this Great Biblical Truth (1 Timothy 4:11).
So, preaching God as Saviour of all men but especially believers (1 Timothy 4:9 – 11) seems to be a Way to avoid ‘demonization with possible apostasy’ via the “doctrine of demons” (1 Timothy 4:1) as the Context of ‘Consecutive Verses’ Prove Irrefutably.
Any doctrine which is based on something which is actually NOT Written in Holy Scripture (though a Christian may ‘think’ it is written) is possibly a ‘demonic doctrine’ based on 1 Timothy 4:1 and believing that “God Will have all men to be saved” (1 Timothy 2:4, KJV) where the context of “all men” here means ‘every human being ever created’ is proven by 1 Timothy 4:10 where both the phrases “all men” and “those who believe, or believers” exist proving this distinction irrefutably and is certainly not a doctrine of demons as the Context of Consecutive Verses from this same chapter (letter) clearly implies “as it is Written”.
Peace to you