Matthew 25:41 states, "Then shall he say also unto them on the left hand, Depart from me, ye cursed, into everlasting fire, prepared for the devil and his angels."
Hell was prepared by God. So, God created totorturous means for Satan even though he has a free will to choose, but why not be a "loving" God and instead of trying to win him back, just prepare a torture chamber. Second, no where in the bible does it say that hell is the absense of God.
There was a rich man who was dressed in purple and fine linen and lived in luxury every day. [20] At his gate was laid a beggar named Lazarus, covered with sores [21] and longing to eat what fell from the rich man's table. Even the dogs came and licked his sores. [22] "The time came when the beggar died and the angels carried him to Abraham's side. The rich man also died and was buried. [23] In hell, where he was in torment, he looked up and saw Abraham far away, with Lazarus by his side. [24] So he called to him, 'Father Abraham, have pity on me and send Lazarus to dip the tip of his finger in water and cool my tongue, because I am in agony in this fire.'
As we can see, Jesus knew of this hell and what was going on, therefore it was not absent of him.
42 Jesus said to them, “If God were your Father, you would love Me, for I proceeded forth and came from God; nor have I come of Myself, but He sent Me. 43 Why do you not understand My speech? Because you are not able to listen to My word. 44 You are of
your father the devil, and the desires of your father you want to do. He was a murderer from the beginning, and does not stand in the truth, because there is no truth in him. When he speaks a lie, he speaks from his own
resources, for he is a liar and the father of it. (John 8)
So, we see that the root cause of this from what Jesus is saying is the Satan. Satan is not necessary for this and your Bible never says that but shows him as a lion trying to kill us and devour us while God lets him. This is not right and is immoral and unjust.
And goodness/efforts is VERY essential. Jesus even said:
37 “Then the righteous will answer Him, saying, ‘Lord, when did we see You hungry and feed
You, or thirsty and give
You drink? 38 When did we see You a stranger and take
You in, or naked and clothe
You? 39 Or when did we see You sick, or in prison, and come to You?’ 40 And the King will answer and say to them, ‘Assuredly, I say to you, inasmuch as you did
it to one of the least of these My brethren, you did
it to Me.’
41 “Then He will also say to those on the left hand, ‘Depart from Me, you cursed, into the everlasting fire prepared for the devil and his angels: 42 for I was hungry and you gave Me no food; I was thirsty and you gave Me no drink; 43 I was a stranger and you did not take Me in, naked and you did not clothe Me, sick and in prison and you did not visit Me.’
44 “Then they also will answer Him,[
d] saying, ‘Lord, when did we see You hungry or thirsty or a stranger or naked or sick or in prison, and did not minister to You?’ 45 Then He will answer them, saying, ‘Assuredly, I say to you, inasmuch as you did not do
it to one of the least of these, you did not do
it to Me.’ 46 And these will go away into everlasting punishment, but the righteous into eternal life.”
See that Jesus is reffering to what they DID AND DIDN'T DO is what seperated them, therefore effort and goodness makes all the difference.