A Biblical Response:
First, while in some texts the word "eternal" (Greek,
aionios) may refer to "the age to come" or "age" (
Luke 1:70, etc.) in
Matthew 25:46 we read:
And these will go away into eternal [aionios] punishment, but the righteous into eternal [aionios] life.
The Greek word [
aionios] is used numerous times in the New Testament. In addition to being used for, an eternal covenant (
Heb 13:20), an eternal kingdom (
2 Pet 1:11), an eternal dominion (
1 Tim 6:16), an eternal gospel (
Rev 14:6), an eternal redemption (
Heb 9:12), an eternal salvation (
Heb 5:9), an eternal inheritance (
Heb 9:15), an eternal comfort (
2 Thess 2:16), an eternal weight of glory (
2 Cor 4:17-18; cf.
2 Tim 2:10;
1 Pet 5:10), and an eternal house (
2 Cor 5:1), it is also used (1) three times to describe God's eternal nature (
Rom 16:26;
1 Tim 6:16;
Heb 9:14), (2) numerous times to describe the unending happiness of the redeemed (
Rom 5:21;
6:23;
1 John 1:2, et. al.); and (3) five times to refer to the punishment of the wicked (
Matt 18:8;
25:41,
46;
2 Thess 1:9;
Jude 1:7).
In
Matthew 25:46, the identical word "eternal" (Greek,
aionios) is mentioned twice: (1) once in regard to the righteous and (2) and again in regards to the unrighteous. So, if the punishment mentioned in
Matthew 25:46 is
merely temporary and if the Annilhilationist is consistent in thier interpretation method, then Heaven, God's covenant, God's kingdom, God's dominion, the Gospel, the saint's redemption, the saint's salvation, the saint's inheritance, the saint's comfort, God's and the saint's glory, the saint's eternal home, the saint's happiness, AND God's very nature are all temporary too! If the Annihilationist doesn't believe in the necessary conclusion of their interpretation, then they need to repent and abandon the false doctrine of Annihilationism. If they fail to abandon Annihilationism then; "They went out from us, but they were not of us; for if they had been of us, they would have continued with us. But they went out, that it might become plain that they all are not of us" (
1 John 2:19).
In
Matthew 25:46 the contrast is clear that there is a different quality of existence that is "endless" in both cases. Moreover, when this verse is read in its fuller context, including
Matthew 25:41, speaking of the unbeliever in "eternal fire," a conscious state of torment and painful judgment is clearly understood. The "eternal fire" that unbelievers are cast into (
Matt 25:41) is the same "eternal fire" the devil and his angels are cast into; where they are tormented "forever and ever" (
Rev 20:10). Therefore, in context "eternal" must mean "forever and ever," "endless," "everlasting," or "eternity" (cf.
2 Thess 1:9). Hell is forever; it is an endless place of torment!
Second, God lives "for ever [
aion] and ever [
aion]" (
Rev 1:18;
10:6;
15:7), and glory, which includes God's holy and just wrath against the wicked (
Isa 5:16;
Rom 9:22-23; cf.
Rev 18:20;
19:2-3), is to be given to him "for ever [
aion] and ever [
aion]" (
Rev 1:6;
4:9-10;
5:13;
7:12), and since the righteous in Christ shall reign with him "for ever [
aion] and ever [
aion]" (
Rev 22:5), then the wicked surely will be tormented day and night "for ever [
aion] and ever [
aion]" (
Rev 20:10; cf.
Rev 14:11).
Third, "eternal life" means more than a mere "eternal existence." A rock has an existence, but it's not alive. Eternal life has a living beginning point; so does eternal damnation.
John 3:36 states, "Whoever believes in the Son
has eternal life; whoever does not obey the Son shall not see life,
but the wrath of God remains on him." Here as in other places "eternal life" is spoken of as a present possession (
John 5:24;
6:54;
1 John 5:11,
13). As "eternal life" is a present (
John 17:3) and future reality (
Matt 25:46), so the unbeliever is under the living "wrath of God" now (
John 3:36) and in the future (
Matt 25:46). So, eternity has already begun and will never end. The wrath of God upon the unbeliever has already begun; they are "condemned already" (
John 3:18).