Rapture
Definition: The belief that faithful Christians will be bodily caught up from the earth, suddenly taken out of the world, to be united with the Lord "in the air." The word "rapture" is understood by some persons, but not by all, to be the meaning of 1 Thessalonians 4:17. The word "rapture" does not occur in the inspired Scriptures.
How anyone can come up with the Rapture doctrine from that verse is beyond me. To do so requires completely ignoring the preceding couple of verses, because the Rapture (certainly as originally proposed - I know there are various other versions nowadays) was supposed to come before the Trinbulation to save 'true believers from it, yet 1 Thessalonians clearly puts the catching up of those alive after the General Resurrection (and so clearly after the Tribulation), as you can see (emphasis mine):
For this we say to you by the word of the Lord, that
we who are alive and remain until the coming of the Lord will by no means precede those who are asleep. For the Lord Himself will descend from heaven with a shout, with the voice of an archangel, and with the trumpet of God. And
the dead in Christ will rise first. Then we who are alive and remain shall be caught up together with them in the clouds to meet the Lord in the air. - 1 Thessalonians 4:15-17
Of course, you could claim that there is not one but two resurrections (one pre-Trib for Christians another post-Trib for the rest) and not just a Second Coming but a Third (again one pre- and one post-Trib) but that just opens another can of worms. It's just utterly impossible to reconcile Margaret MacDonald's extra-scriptural 'revelations' with Scripture.
James