The OP was so long, that my response to the OP will have to come in (at least) 4 posts (forgive me... and I sure hope I don't have to try to EDIT it all, LOL):
No, premill does not believe in 3 [singular] "ages" after the Cross. Generally speaking, it believes there is "this present age [singular]" and "the age [singular] to come" (both occurring "on the earth" just as all "age [singular]" do)... and after that is "the ages [plural] of the ages [plural]" which means eternity/eternal state, or forever (as we commonly call it).
Pre-trib, on the other hand (though also being Premill), believes that "the end [singular] of the age [singular]" is the last 7 years of the time period Jesus and His disciples were standing in and speaking out from, which will both commence and conclude AFTER "the Church which is His body" is caught UP in our Rapture. Jesus did not speak of our Rapture (nor Church-truths) at the time of His [speaking His] Olivet Discourse, only breifly having mentioned His Church prior to this.
Matthew 22:7-8 provides this SEQUENCE (which I've gone over several times before, so won't go into now, but basically: v.7 is the 70ad events, THEN verse 8's "THEN SAITH HE to His servants" = Rev1:1/7:3 (re: the 4:1/1:1 FUTURE things--NOT things happening NOW "in this present age [singular]"/the Church age, so called; Rev1:1 "...things which must come to pass [4:1--the future things] IN QUICKNESS [NOUN]...").
Here (in what you are getting ready to present in the following), you are disregarding what 1Cor2:7-8, "...which none of the princes of this world knew: FOR HAD THEY KNOWN IT, they WOULD NOT have crucified the Lord of glory."
There were certain things that were necessary to be kept secret/hidden-in-God/a-mystery-until-after the crucifixion, otherwise (had they been made aware of this), they WOULD NOT have crucified Him!
Jesus (as of this point in time) only spoke of (elaborated on) "the age they were standing in" [not "the Church age"] and "the age [singular] to come" (which they understood correctly to be the promised and prophesied earthly Millennial Kingdom--they just did not understand the TIMING of it).
God had not disclosed through Jesus' earthly ministry things pertaining to "this present age [singular]" which were "hidden in God"... Read Acts 3:26 (and its context) which says "UNTO YOU FIRST [you, Israel] having raised up [that is, to a position of prominence in His earthly ministry BEFORE His death! (see v.22)--there are TWO DISTINCT kinds of "raised" in this chpt!] having raised up His Servant Jesus [earthly ministry BEFORE His death] , SENT HIM to bless you [Israel], in turning every one of you from his iniquities." And verse 4 of the following chapter states, "Howbeit many of them that heard the word believed;"
Same as above, in the first of those two paragraphs I'd put.
Paul was given to understand the things that had been kept "hidden in God" until after the Cross/His resurrection/exaltation, so he speaks of "this present age" (the Church age) and then also "the age [singular] to come" ("age" in the singular is always connected to the earth, where it will transpire).
Jesus said what His Father wanted Him to say (which He didn't want certain secrets known before the Cross work was carried out).
Paul was given revelation of certain things pertaining to "the Church which is His body" (its position, privileges, placement, doctrine/teachings, etc), which had not yet been disclosed (before the Cross work was carried out).
delirious: The premillennialist believes in three ages after the cross. The church age that we are currently in, the 1,000 year reign of Christ on earth (the millennium), and the New Heavens and Earth after the 1,000 years are over.
Pre-trib, on the other hand (though also being Premill), believes that "the end [singular] of the age [singular]" is the last 7 years of the time period Jesus and His disciples were standing in and speaking out from, which will both commence and conclude AFTER "the Church which is His body" is caught UP in our Rapture. Jesus did not speak of our Rapture (nor Church-truths) at the time of His [speaking His] Olivet Discourse, only breifly having mentioned His Church prior to this.
Matthew 22:7-8 provides this SEQUENCE (which I've gone over several times before, so won't go into now, but basically: v.7 is the 70ad events, THEN verse 8's "THEN SAITH HE to His servants" = Rev1:1/7:3 (re: the 4:1/1:1 FUTURE things--NOT things happening NOW "in this present age [singular]"/the Church age, so called; Rev1:1 "...things which must come to pass [4:1--the future things] IN QUICKNESS [NOUN]...").
So which one is correct? Let us start by looking at some Scriptures and see how Jesus Himself and Paul viewed this.
There were certain things that were necessary to be kept secret/hidden-in-God/a-mystery-until-after the crucifixion, otherwise (had they been made aware of this), they WOULD NOT have crucified Him!
Matthew 12:32, “Anyone who speaks a word against the Son of Man, it will be forgiven him; but whoever speaks against the Holy Spirit, it will not be forgiven him, either in this age or in the age to come.”
God had not disclosed through Jesus' earthly ministry things pertaining to "this present age [singular]" which were "hidden in God"... Read Acts 3:26 (and its context) which says "UNTO YOU FIRST [you, Israel] having raised up [that is, to a position of prominence in His earthly ministry BEFORE His death! (see v.22)--there are TWO DISTINCT kinds of "raised" in this chpt!] having raised up His Servant Jesus [earthly ministry BEFORE His death] , SENT HIM to bless you [Israel], in turning every one of you from his iniquities." And verse 4 of the following chapter states, "Howbeit many of them that heard the word believed;"
Luke 18:29-30, “Truly, truly, I say to you, there is no one who has left house or parents or brothers or wife or children, for the sake of the kingdom of God, who shall not receive many times more in this present time, and in the age to come eternal life.”
Luke 20:34-35, Jesus said to them, “The sons of this age marry and are given in marriage but those that are accounted worthy to attain that age, and the resurrection from the dead, neither marry nor are given in marriage.”
Luke 20:34-35, Jesus said to them, “The sons of this age marry and are given in marriage but those that are accounted worthy to attain that age, and the resurrection from the dead, neither marry nor are given in marriage.”
Ephesians 1: 21, “far above all principality and power and might and dominion, and every name that is named, not only in this age but in the age to come.”
So Jesus and Paul only knew of two ages.
Paul was given revelation of certain things pertaining to "the Church which is His body" (its position, privileges, placement, doctrine/teachings, etc), which had not yet been disclosed (before the Cross work was carried out).