When Amil's read the whole New Testament we see that the Day of the Lord -when Jesus returns - is it. There is no more, no in-between ages, no end-times-table. The Lord suddenly and unpredictably returns and EVERYTHING changes in an instant.
There are two ages in the New Testament - THIS AGE - and the AGE TO COME - and the transition between the two is the Day of the Lord aka Judgement Day aka the Coming of the Son of Man. There's just no separating any of this out! The dead are raised and judged, the heavens and earth melt, the New Heavens and New Earth are installed and believers are saved into their eternal new home. All together - as far as I can tell - in a flash! So read the clearer statements in Scripture first, then try and understand the less clear after that. Let's look at the clear first.
THIS AGE looks like this:-
“homes, brothers, sisters, mothers, children, and fields — and with them persecutions” (Mk 10:30); “The people of this age marry and are given in marriage” (Lk 20:34); the scholar, philosopher and such wisdom are of this age (1 Cor 1:20); secular and religious rulers dominate (1 Cor 2:6-8); “the god of this age [Satan] has blinded the minds of unbelievers” (2 Cor 4:4); this age is explicitly called “the present evil age” (Gal 1:4); ungodliness and worldly passions are typical of it (Titus 2:12). All of these qualities are temporal, and are certainly destined to pass away with the return of our Lord. “This age” is the age in which we live, and is the age in which we struggle as we long for the coming of Christ and the better things of the age to come.
THE AGE TO COME looks like this:-
it is characterized by eternal life (Mk 10:30; Lk 18:30); is also denoted as a time when there is no marriage or giving in marriage (Lk 20:35); and it is which is characterized by “life that is truly life” (I Tim 6:19). These qualities are all eternal, and are indicative of the state of affairs and quality of life after the return of Christ. In other words, these two ages, the present (“this age”) and the future (the “age to come”) stand in diametrical opposition to one another. One age is temporal; the other is eternal. One age is characterized by unbelief and ends in judgement; the other is the age of the faithful and is home to the redeemed. It is this conception of biblical history that dominates the New Testament.
THE DAY OF THE LORD / LAST DAY looks like this
MATTHEW 13
The harvest is the end of the age, and the harvesters are angels. 40 “As the weeds are pulled up and burned in the fire, so it will be at the end of the age. 41 The Son of Man will send out his angels, and they will weed out of his kingdom everything that causes sin and all who do evil. 42 They will throw them into the blazing furnace, where there will be weeping and gnashing of teeth. 43 Then the righteous will shine like the sun in the kingdom of their Father. Whoever has ears, let them hear.
Jesus expressly states that he will raise believers up on the “last day” (Jn 6:39, 40, 44, 54; 11:24)
“There is a judge for the one who rejects me and does not accept my words; that very word which I spoke will condemn him at the last day” (John 12:48)
The return of Christ will occur “in a flash, in the twinkling of an eye, at the last trumpet. For the trumpet will sound, the dead will be raised imperishable, and we will be changed” (1 Co. 15:52; cf. 1 Thess 4:16). Notice that there are no gaps of time indicated between the resurrection and the judgement. These texts collectively speak of the resurrection, the judgment, and the return of Christ as distinct aspects of but one event, occurring at precisely the same time (cf. Mt 25:31-46). Premillennialists, who often chide amillennialists for not taking the Bible “literally” and who champion what they call the “literal” interpretation of Scripture, must now insert a thousand-year gap between the Second Coming of Christ (and the resurrection) and the Final Judgment to make room for the supposed future millennial reign of Christ! And this, ironically, when the clear declarations of Scripture do not allow for such gaps.
IT ALL HAPPENS TOGETHER!
2 Thessalonians 1:7-10
and give relief to you who are troubled, and to us as well. This will happen when the Lord Jesus is revealed from heaven in blazing fire with his powerful angels. 8 He will punish those who do not know God and do not obey the gospel of our Lord Jesus. 9 They will be punished with everlasting destruction and shut out from the presence of the Lord and from the glory of his might 10 on the day he comes to be glorified in his holy people and to be marveled at among all those who have believed. This includes you, because you believed our testimony to you.
2 Peter 3:10-13
10 But the day of the Lord will come like a thief. The heavens will disappear with a roar; the elements will be destroyed by fire, and the earth and everything done in it will be laid bare. 11 Since everything will be destroyed in this way, what kind of people ought you to be? You ought to live holy and godly lives 12 as you look forward to the day of God and speed its coming. That day will bring about the destruction of the heavens by fire, and the elements will melt in the heat. 13 But in keeping with his promise we are looking forward to a new heaven and a new earth, where righteousness dwells.
(Much of the material here adapted from the following source.)
A Present or Future Millennium? by Kim Riddlebarger