Yes, Satan and the devil are used in a variety of ways in scripture. The devil had the power of death - and the sting of death was sin. The devil incarnate was represented as sins in our flesh.
The power of death was always in "sin" and not a demonic being. And the power of sin was the Law. ( see 1 Cor. 15:56)
So how can you believe Satan is literally in hell, but you can't believe that death will literally be destroyed?
OR do you believe in Satan at all? Many people believe he is simply symbolic of sin or evil or Republicans.
Death is destroyed, Eternal life begins now. But it is still appointed for man to die once. and then his/her judgment or not. Christ defeated "death" but He still had to die to do it.
Eternal life isn't appreciated this side of eternity because it takes faith, which is the substance of things not seen.
Do I believe "in" Satan? No. We give something much more power when we believe in it. I don't believe there is a Satanic being.
Satan and the devil are used as a source of evil or temptation in scripture. For instance, the "thorn" that was in Paul's side that was from Satan. Peter and Paul cwere continuously challenged and burdened by the Judaizers- like " Satan masquerading as angels of light."
That merely meant that the Judaizers were false apostles. See, so Satan IS an adversary and a source of evil. Sometimes personified too.
The influence of Satan is "to sin." That's what is left of Satan after being thrown to the lake of fire.
But there's definitely no demonic being called Satan.