Jesus is going to be leaving his disciples very shortly, he is to be crucified, buried, and risen the third day. He has been training his disciples for 3 1/2 years, they are to take over the gospel work he has started, he is going away and leaving the church in their hands.
His words, therefore, are for the church, not Judaism, including what he said about his coming in verses 29-31, when the elect, the church, would be raptured at the last trump. At the last day.
The Olivet Discourse was given from the standpoint of Judaism’s rejection of Christ, see the entire previous chapter, especially verse 38, “Your house is left unto you desolate.” Spoken to the founders of the church, the twelve disciples. Christ is not speaking to the disciples as representatives of Judaism, which rejected Christ, everything he said was said to, and for the church.
There is only one coming in the entire discourse, and it occurs after the tribulation. No mention of a pretrib rapture at all.
Breaking this paragraph into two paragraphs, I try to have it make more sense:
The Olivet Discourse was given from the standpoint of Judaism’s rejection of Christ, see the entire previous chapter, especially verse 38, “Your house is left unto you desolate.”
The discourse was spoken to the founders of the church, the twelve disciples. Christ is not speaking to the disciples as representatives of Judaism, which rejected Christ, everything he said was said to, and for, the church.