A bride prepares herself for the big day. Sometimes it takes months, to prepare. Get the dress; makeup artist, shoes; ring; the list goes on. No bride wants to look shabby on their day.
The bible calls us “the bride of Christ”. Revelation 19; 7 reads “Let us be glad and rejoice, and give honour to him: for the marriage of the Lamb is come, and his wife hath made herself ready”. Note the phrase “the bride has made herself ready”. Revelation 21; 2 describes the glorified bride.