Why would one desire to created an outside cause for the evil thoughts in their mind.....as opposed to being tempted of our own lusts?
Well, first God created Adam and Eve as perfect creatures, and He said His creation was
"very good". So, Adam and Eve did not of their own selves do evil; but yes we humans can blame someone outside ourselves, but James does say we are tempted of our own lusts. Even so, our Apostle Paul says there is
"the spirit who works in the sons of disobedience," in Ephesians 2:2.
So, therefore I do not think humans created Satan.
But humans have been violated by the evil spirit of Satan, I get, going by how Paul says there is the evil spirit of disobedience who
"works" in disobedient people.
It is not only evil thoughts, by the way, but those lusts . . . and their passions and emotions and anti-love ways of reacting . . . those lusts work very hard. And they have become people's own lusts, since Satan is sharing them with people by means of his spirit.
Jesus does say to children of Satan >
"You are of your father the devil, and the desires of your father you want to do," in John 8:44. So, they come from Satan and the working of his spirit, then them indeed are the person's own . . . but in sharing with Satan.
Why do people believe that Satan IS a personal being?
Partly because Jesus Himself says children of disobedience have Satan as their
"father". So, a question is, then, why do people want to make up something else?
"Fear ye not, neither be afraid: have not I told thee from that time, and have declared it? ye are even my witnesses. Is there a God beside me? yea, there is no God; I know not any."
I understand that basic Cristian belief includes that Satan is not another God. Satan is inferior to Jesus. However our Apostle Paul calls Satan
"the god of this world", in 2 Corinthians 4:4. So, we understand Paul means Satan is in some sort of control of evil people. But, by the way, his way is very inferior . . . like how conquerors have very inferior ways which get them very inferior things > Romans 8:37.
And, like we have offered > Paul has said Satan has
"desires". A personal being has desires. So, correct Christian belief is that Satan is a conscious personal spiritual being, but he is not another God.