Summary: Consider the points of correlation between the Olivet Discourse and the writings of the Apostles:
Certain theology teachers, of past and present, interpret the important Olivet Discourse of Mt 24, Mk 13 and Lk 21 as having been completely and finally fulfilled in A.D. 70 at the destruction of Jerusalem and accompanying events.
Consider the points of correlation between the Olivet Discourse and the writings of the Apostles:
1) Jesus said in the Olivet Discourse that His coming would occur with the sound of a trumpet:
And then shall appear the sign of the Son of man in heaven: and then shall all the tribes of the earth mourn, and they shall see the Son of man coming in the clouds of heaven with power and great glory. And he shall send his angels with a great sound of a trumpet (or with a trumpet, and a great voice), and they shall gather together his elect from the four winds, from one end of heaven to the other. - Mt 24:31
This is the only time in the Bible where Jesus associated a trumpet with His return. Now observe what the Apostles said about the trumpet:
Behold, I shew you a mystery; We shall not all sleep, but we shall all be changed, In a moment, in the twinkling of an eye, at the last trump: for the trumpet shall sound, and the dead shall be raised incorruptible, and we shall be changed. - 1Cor 15:52
For this we say unto you by the word of the Lord, that we which are alive and remain unto the coming of the Lord shall not prevent them which are asleep. For the Lord himself shall descend from heaven with a shout, with the voice of the archangel, and with the trump of God: and the dead in Christ shall rise first: Then we which are alive and remain shall be caught up together with them in the clouds, to meet the Lord in the air: and so shall we ever be with the Lord. Wherefore comfort one another with these words. - 1Thes 4:15-18
And the angel which I saw stand upon the sea and upon the earth lifted up his hand to heaven, And sware by him that liveth for ever and ever, who created heaven, and the things that therein are, and the earth, and the things that therein are, and the sea, and the things which are therein, that there should be time no longer: But in the days of the voice of the seventh angel, when he shall begin to sound, the mystery of God should be finished, as he hath declared to his servants the prophets. - Rev 10:5-7
Now if these three scriptures are indeed referring to Christ’s statement about the trumpet, then there can be no doubt that both Paul and John believed the Olivet Discourse pertained to the end of time. Further, observe that Paul claimed to be conveying the word of the Lord in 1Thes 4:15-18. Since Jesus never associated a trumpet with His return anywhere other than in the Olivet Discourse, it seems very likely that Paul had this discourse in consideration when he penned these words obviously describing the end.
2) In the Olivet Discourse, Jesus compared His coming to that of a thief:
But know this, that if the goodman of the house had known in what watch the thief would come, he would have watched, and would not have suffered his house to be broken up. - Mt 24:43