Dearest Diane and Doves,
  I'm no Bible numeric' genius, but, I thought the question was a valid and interesting one, and , also get the impression that it relates to Bride of Christ.
  The first thing I found(almost immediately) was this bit of info:

84 hrs. is equal to 3-1/2 days, which is an obvious reference to the Resurrection.

84 is 2x24 ...24 in Bible numeric s relates to the priesthood(not sure how to signify that)

Strong' H-84 is "feather" or "wing",  an indirect reference to the catching away

Strong' G-84 is derived from G-82 which is "hidden" or "appear not", with obvious allusions to Enoch' final earthly event in
           Gen 5:24  And Enoch walked with God: and he was not; for God took him....

the word in Hebrew for "he was not" is Strong' H-369, which means "be nothing" or "not exist" or like the Greek G-82 "appear not"

The 84th chapter of the Bible is Exodus 34, the story of Moses being told, by God, to "come up in the morning unto mount Sinai, and present thyself there to me in the top of the mount.", once again, the command to come up hither.

The 84th chapter of the New Testament is John 16, which is the end of Christ' explanation to His disciples about "the last days and about..."how is it that thou wilt manifest thyself unto us, and not unto the world?" John 14:22  a sweeping, yet concise explanation of our relationship to Christ and His relationship to the Father and ends in chapter 17 with Christ' prayer to the Father concerning His ongoing care for us and our inter-relatedness, the crux of which seems to be John 17:21 through 17:24...(I'm going to remove the verse divisions)

  That they all may be one; as thou, Father, art in me, and I in thee, that they also may be one in us: that the world may believe that thou hast sent me. And the glory which thou gavest me I have given them; that they may be one, even as we are one:  I in them, and thou in me, that they may be made perfect in one; and that the world may know that thou hast sent me, and hast loved them, as thou hast loved me.  Father, I will that they also, whom thou hast given me, be with me where I am; that they may behold my glory, which thou hast given me: for thou lovedst me before the foundation of the world....
By reverse engineering, the Father loved Christ as Christ loved us as we loved one another and through that are made one (in Christ)and by becoming one(in Christ) are made perfect, showing the world that God did in fact send Yeshuah as the Christ(savior).
  Sorry, I kind of left off of the original theme of 84 relating to the bride of Christ...

...am I stretching here, doesn't seem so to me, but, then again, I already believe "all things" and the significance of the number 84 is an obvious reference to the bride and her disappearance.