... Why should an Atheist be concerned with annihilation when they basically already believe in annihilation already? Resting In Peace forever is basically the same thing as annihilation. Why should atheists fear Gods wrath if Gods wrath is Resting In Peace forever ? Being thrown into a a lake of fire would result in a very quick death. I bet Jesus would have preferred a quick death.
Well, human souls that "perish" there in the "second death", which will "destroy body and soul" (Mt 10:28) will first experience a terrible grief and anguish from their impending end it seems, as they will first experience "weeping and gnashing of teeth" we read.
They will know what they rejected, and know how real and final the coming real death is....it will no longer be something they can pretend or imagine away....they won't be able to say the self-programming comfort words "I'm ok with dying" that people like to say to themselves.
This payment of debt...also applies for Christians that do not forgive some others (!) -- they will
not be released until they have paid the last penny of their debt:
The Parable of the Unforgiving Servant
21 Then Peter came up and said to him, “Lord, how often will my brother sin against me, and I forgive him? As many as seven times?”
22Jesus said to him, “I do not say to you seven times, but seventy-seven times.
23 “Therefore the kingdom of heaven may be compared to a king who wished to settle accounts with his servants.
24 When he began to settle, one was brought to him who owed him
ten thousand talents (or 'bags of gold' in the NIV). 25 And since he could not pay, his master ordered him to be sold, with his wife and children and all that he had, and payment to be made.
26 So the servant fell on his knees, imploring him, ‘Have patience with me, and I will pay you everything.’
27 And out of pity for him, the master of that servant released him and forgave him the debt.
(amazing grace!)
28 But when that same servant went out, he found one of his fellow servants who owed him a hundred denarii, and seizing him, he began to choke him, saying,
‘Pay what you owe.’
29 So his fellow servant fell down and pleaded with him, ‘Have patience with me, and I will pay you.’
30 He refused and went and put him in prison until he should pay the debt.
31 When his fellow servants saw what had taken place, they were greatly distressed, and they went and reported to their master all that had taken place.
32 Then his master summoned him and said to him, ‘You wicked servant!
I forgave you all that debt because you pleaded with me. 33 And
should not you have had mercy on your fellow servant, as I had mercy on you?’
34 And in anger his master delivered him to the jailers, until he should pay all his debt.
35 So also my heavenly Father will do to every one of you, if you do not forgive your brother from your heart.”
(ten thousand talents or bags of gold...that's not a quick and easy thing to pay off............)