No one supposes that we are being redeemed or being saved forever. We were redeemed and saved once for all by Christ with eternal results. In the same way the lost will not be passing through a process of punishment for ever but will be punished once and for all with eternal results. On the other hand the noun 'life' is not a noun of action, but a noun expressing a state. It is evident that the destruction of the wicked cannot be eternal in its duration, because it is difficult to imagine an eternal, inconclusive process of destruction.
Destruction presupposes annihilation.
The destruction of the wicked is eternal aionios, not because the process of destruction continues forever, but because the results are permanent. It is a punishment that results in their eternal destruction or annihilation. He hath broken my covenant. Whosoever shall make like unto that, to smell thereof, he shall be cut off from his people . Whosoever it be that eateth any blood, that soul shall be cut off from his people .