The Day of the LORD is definitely defining to the end of the era of goyim(gentiles) and the beginning of Messiah's reign as King for a millenium. Here I have scripture (that is commonly used for pre-trib belief) here I've used some of those very scriptures to prove it falisy.
AS MOST OF US KNOW, 1 COR. 15:52 IN A MOMENT, IN THE TWINKLING OF AN EYE, AT THE LAST TRUMPET. FOR THE TRUMPET WILL SOUND, AND THE DEAD WILL BE RAISED INCORRUPTIBLE, AND WE SHALL BE CHANGED. AND 1 THESS. 4:16-17 16) FOR THE LORD HIMSELF WILL DESCEND FROM HEAVEN WITH A SHOUT, WITH THE VOICE OF AN ARCH ANGEL, AND WITH THE TRUMPET OF GOD. AND THE DEAD IN CHRIST WILL RISE FIRST. 17) THEN WE WHO ARE AL...IVE AND REMAIN SHALL BE CAUGHT UP TOGETHER WITH THEM IN THE CLOUDS TO MEET THE LORD IN THE AIR. AND THUS WE SHALL ALWAYS BE WITH THE LORD. AS MOST OF US KNOW THAT THESE ARE 2 OF MOST USED AND FAVORITE PASSAGES IN SCRIPTURE FOR PRE-TRIB EVIDENCE. SO LETS LOOK AT 1 CORINTHIANS FIRST, IN IT, IT SAYS AT THE 'LAST' TRUMP. THE GREEK WORD FOR LAST IS 'ESCHATOS' WHICH MEANS, (FARTHEST, FINAL, LAST, UTTERMOST. SO HERE THIS VERSE SAYS AT THE FINAL TRUMP, THE DEAD WILL BE RAISED INCORRUPTIBLE. HMMMM. NOW LETS LOOK AT 1 THESS. IN VERSE 16, THE WORD DESCEND IN THE GREEK IS 'KATABAINO' MEANING TO COME DOWN FROM, SO THIS MEANS YESHUA IS COMING DOWN FROM. ALSO IN VERSE 16, "WITH A SHOUT" THE GREEK WORD 'KELEUMA' WHICH MEANS A CRY OF INCITEMENT' SO NOT A SILENT EVENT. V.17 "WHO ARE ALIVE AND REMAIN" THE WORD REMAIN IN THE GREEK IS 'PERILEIPO' WHICH MEANS TO LEAVE ALL AROUND, SURVIVE' HMMM, WHO HAVE SURVIVED. NOW LETS LOOK AT REV. 20:4-5 4)AND I SAW THRONES, AND THEY SAT ON THEM, AND JUDGEMENT WAS COMMITTED TO THEM. THEN I SAW THE SOULS OF THOSE WHO HAD BEEN BEHEADED FOR THEIR WITNESS TO YESHUA AND FOR THE WORD OF YHVH, WHO HAD NOT WORSHIPED THE BEAST OR HIS IMAGE, AND HAD NOT RECEIVED HIS MARK ON THEIR FORHEADS OR ON THEIR HANDS. AND THEY LIVED AND REIGNED WITH CHRIST FOR A THOUSAND YRS. 5) BUT THE REST OF THE DEADDID NOT LIVE AGAIN UNTIL THE THOUSAND YEARS WERE FINISHED. THIS IS THE FIRST RESURRECTION. SO HERE IN REVELATION 20 IT IS TELLING US THAT THOSE WHO WERE BEHEADED IN THE TRIBULATION AND DIDN'T TAKE THE MARK OF THE BEAST WERE A PART OF THE FIRST RESURRECTION, WHICH GOES ALONG WITH 1 THESS. 4 ABOUT THE DEAD WILL RISE FIRST, WHICH GOES ALONG WITH 1 COR. 15 AT THE LAST TRUMP AND THE DEAD WILL BE RAISED INCORUPTIBLE. THE KEY HERE IS THAT THOSE WHO WERE BEHEADED ARE A PART OF THE FIRST RESURRECTION. THEN THAT WOULD MEAN THAT THERE COULDN'T BE A RAPTURE OF THE SAINTS BEFORE THE TRIB. IF THEY ARE A PART OF THE FIRST RESURRECTION. WHICH WOULD THEN FOLLOW WITH HEBREWS 9:28 SO MESSIAH WAS OFFERED ONCE TO BEAR THE SINS OF MANY. TO THOSE WHO EAGERLY WAIT FOR HIM HE WILL APPEAR A SECOND TIME, APART FROM SIN, FOR SALVATION. SO ALL THIS TELLS US THAT YESHUA WILL COME A SECOND TIME, AND THE FIRST RESURRECTION IS NOT UNTIL THOSE WHO ARE BEHEADED IN THE GREAT TRIBULATION. THAT MEANS THAT PRE-TRIB IS A LIE. SCRIPTURE BACKS UP SCRIPTURE, BEWARE OF FALSE TEACHINGS. SHALOM