I found 73 references to demons in scripture.
I’ll be studying each reference in context, in order to learn whatever it is we should know about this topic. Today I’m looking at references 6-10.

REFERENCE 6
Matthew 4:24 
News about Him spread throughout all Syria. And they brought to Him all the sick—those tormented by various diseases and afflictions, those plagued by demons, the epileptics, the paralyzed—and He healed them.

Thus begins the ministry of Yeshua.
We are told that Yeshua healed the sick and cast out demons from those afflicted.
No details are given here, just that He became widely known for this.

REFERENCE 7
Matthew 8:16-17
¹⁶ When evening came, the people brought to Him many who were afflicted by demons. He forced out the spirits with a word and healed all who were sick. ¹⁷ So was fulfilled what was spoken through Isaiah the prophet, saying,
“He Himself took our sicknesses
    and carried away our diseases.”

Again we see Yeshua healing and freeing the afflicted from demons.
This time, we get just a bit of detail.
We see that Yeshua ‘forced out the demons with a word’.
Did He speak scripture, or did He just command them with authority?
We know that when Hasatan tempted Him in the desert, He responded three times by quoting Deuteronomy. We have an example where Yeshua defeated Hasatan by quoting Torah. Maybe it applies here as well, with casting out demons. We are not given these details, though.

However, I find the reference to Isaiah interesting.
Mat 8:16 tells us that Yeshua healed the sick and cast out demons.
However, Isaiah says He took our sickness, not just healed us from our sickness.
He carried away our diseases, instead of just ‘healing’.
Are demons/spirits being referred to as a sickness here?
Isaiah does not call it a possession.
This makes my mind go to mental illness again.
What we consider to be mental sickness might just be demons and spirits…
Interesting thoughts…

REFERENCES 8, 9, 10
Matthew 8:28-34
²⁸ When He came to the other side, into the region of the Gadarenes, two demon-plagued men coming from the graveyard met Him. They were so violent that no one could pass by that way. ²⁹ And they screamed, “What’s between You and us, Ben-Elohim? Have You come here to torment us, before the appointed time?”
³⁰ Now a large herd of pigs was feeding some distance away from them. ³¹ The demons kept begging Him, “If You drive us out, send us into the herd of pigs.”
³² And He told them, “Go!” So they came out and went into the pigs, and the whole herd rushed down the cliff into the sea and drowned. ³³ The herdsmen ran away, went into the town, and told everything, including what had happened to the demon-plagued men. ³⁴ The whole town came out to meet Yeshua. And when they saw him, they begged Him to leave their region.

Wow, this story is absolutely packed with information.  Where to even start???
1. Very simply, we see that Yeshua has authority over the demons.  The demons recognized this, and pleaded with Him.
2. Yet again, we see that people plagued by demons existed then, so it is safe to assume this affliction exists today.
3. Demons are violent.
4. The demons knew there is an appointed time for their demise, and they knew that the appointed time had not yet arrived. We can have peace in knowing there is an appointed time when all will be set right.
5. The demons begged to be cast into the herd of pigs, as opposed to just being cast out.  Why is this important?  Apparently, they want to have a host body.  What happens to them if they do not have a host?  I don’t know, but it would seem they don’t like it, preferring pigs over nothing.
6. My whole life, I never understood about the herd of pigs.  Having learned that Torah is true and applicable today, I know that pigs are unclean, and considered to be an abomination with regard to eating them.  I always weighed the loss of a herd of pigs against the value of two men being set free from demons. Obviously, men being free is more important than the value of a herd of pigs.
I now understand that the herd of pigs essentially have no value.  They are not to be raised as a food commodity.  They are scavengers, created to keep the earth clean. They have purpose, but they do not have value as a food to be raised and sold.
The death of the pigs solved two problems at once.
The demons were no longer afflicting two men, and pigs [presumably] being raised for food were destroyed. Killing two spiritual birds with one stone.
7. Now we come to the sad part of the story.  The whole town came out to meet Yeshua, but instead of being grateful for getting rid of demons and unclean food, they were bothered by Him.  They wanted Him to leave their town.
How does this apply to us?
What if we send Yeshua away from our own lives?  What if we reject Him, either by speaking those words, or through our actions of disobedience?
Something to think about…
If we choose to send Yeshua away, He will not argue. He will respect our wishes and go.