Do you believe Christ will return?
I am not sure about that, as I believe that he already returned. The close of the end of the age might be some sort of transformation into the Kingdom. When Jesus talks about the tares being removed from the Kingdom, that must be the earth - as what would tares be doing in heaven? - they wouldn't be there to be removed, that is why I think that the earth is transformed into the Kingdom.
But unlike pre-millennial's, I do not accept a 1000 year rule of Christ with the return to earth of the saints from heaven - I think that the author of Revelation was in error about a literal 1000 year Kingdom.
But at the resurrection, the saints in heaven receive resurrection bodies, which is different from the spiritual body in heaven.
I make use of primarily the Gospels and the teachings of Jesus. I do not believe that the writer of Paul, whoever that was, is reliable - I know that would upset a lot of people, but that is what I conclude on that.
The resurrection occurs at the beginning of the Messianic Age - when people get resurrection bodies to live forever, on a transformed earth.
I can't really respond to all the writings of Paul, as I do not believe that anyone writing in the NT times was reliable as a prophet, except for Jesus - they might just be wrong about it - I believe that prophesy ended with Micah.
If Peter was correct about the earth being consumed by fire - when does that happen? Where do people go who are on the earth at that time? Duzant it say in the OT that the earth endures forever?
The Lion and the Lamb in Isaiah, (as it was) is metaphor, but is also describing a literal condition of transformation of the animal kingdom, in the age to come - no predation, no venomous serpents etc.
I think that the first Christians were gathered up into heaven, much like Elijah.
Jesus talking about the kingdom being introduced before the passing of that generation, was describing the dawn of the kingdom, as the new covenant, as well as his return to collect the saints back in 70 AD.
The question about how is the rapture different if it was in 70 AD - the wheat was gathered up, but Jesus was not describing that specific event - he was talking about the end of the age some 2000 years in the future. That is when the disciples asked him specifically about the end of the age.
Jesus also talked about the tribulation of 70 AD, and prophesied accurately about the Romans surrounding Jerusalem, and warned people to flee to safety. Then immediately after the tribulation, would be the return of Jesus and the 'rapture' of the saints - 70 AD.
The end of the age is more apocalyptic - the 'day of the Lord' prophesied in the OT or Tanakh. This is after the antichrist does his worship of a peculiar god of forces, has no regard for the desire of women, and seeks to alter times and laws, and wears out the saints - which is what they/he is doing now.
The angels are sent out by Jesus, and they take out the tares which are upon the earth. Then the wheat is gathered into his barn - which is those Christians remaining on the earth at that time, and the saints already in heaven - united in the kingdom.
Posting a lot of stuff from Paul and the other letters of the NT wont work for me - Jesus first, and the prophets of old like Isaiah, Micah.
Revelation also - not reliable and not prophetic and not written by John.
Duz Jesus need to return to earth in a physical body? Perhaps. Jesus said that he would drink wine again in the Kingdom, so perhaps so. Whatever sort of immortal body there is, wine will no longer be harmful, or people prone to alcoholism. Like Jesus said - they are like the angels and can no longer die. And like Isaiah said - God will swallow up death.
There are two or more writers of Isaiah. The first Isaiah describes an eternal kingdom. The latter Isaiah pretends to be Isaiah, by using Isaiah's sort of language, but has another belief - in a millennial kingdom of about 1000 years, where people do die. The latter Isaiah is a false prophet - an impostor pretending to be Isaiah.