THE JUDGEMENT WAS SET AND THE BOOKS WERE OPENED.
Daniel 7:9,10 ...'I beheld till the thrones were cast down [SET IN PLACE], and the Ancient of days( GOD THE FATHER )did sit ... A fiery stream issued and came forth from before him: thousand thousands ministered unto him, and ten thousand times ten thousand stood before him: the judgment was set, and the books were opened.'

The books were opened. Do you see? This is the 'investigative judgment.' We could also call it the 'SEEING judgment' (Matt.22:11-12), or the 'REVEALING judgment.' It's like a court case, which REVEALS why someone is aquitted or punished.

Are lost people going to actually enter the heavenly kingdom (New Jerusalem) and THEN be kicked out when God sees they don't have the righteous garment of Christ? No. This takes place BEFORE Jesus returns. In Revelation 22:12 we are told that when Jesus returns, His reward is with Him to give to every man according to his works. Thus the 'seeing' or 'investigating' (Matthew 22:11-12) must have already taken place BEFORE Jesus returns. This is what has been taking place since 1844. Opening the record books (Daniel 7:10; Revelation 20:12) to REVEAL who are the 'guests' at the wedding and WHY certain people are saved and others not.
Now there is another important truth to understand regarding this prophecy and the cleansing of the sanctuary. Yes, Jesus is fulfilling the Old Testament type of the high priest going into the most holy place once a year to cleanse the sanctuary of sin and separate it from the people. The Old Testament high priest entered into the most holy place once every year, but Jesus entered in once. And whereas the Old Testament high priest could only do this in type and symbols, Jesus can do it in reality. Look at what the apostle Paul said regarding the temple of God today:

1 Corinthians 3:16 ...'Know ye not that ye are the temple of God, and that the Spirit of God dwelleth in you? If any man defile the temple of God, him shall God destroy; for the temple of God is holy, which temple ye are.'

So yes, Jesus is fulfilling the Old Testament type of the day of atonement, which the 2300 day prophecy points to, just as He fulfills all Old Testament types. And He is fulfilling this by seeking to blot out our sins from the record books, just as the Old Testament high priest cleansed the temple of the sins of God's people. But what is the deeper, more important meaning to this, in conjunction with what Paul said above? This isn't just about blotting out our sins from the record books in heaven. Jesus is seeking to cleanse the 'soul temple.' We are the temple of God on earth today and it is THIS temple Jesus is also seeking to cleanse, to restore us back into the image and character of God which was lost through sin.

Since just before 1844, we have been living in the 'time of the end.' God is wrapping things up for this world and the close of probation is coming when Christ will no longer plead for humanity. The seven last plagues will be poured out upon the world at the close of probation and God needs a people (144,000) whose lives have been purified and made white through faith in Christ and are able to stand through the time of trouble and seven last plagues without a Mediator in heaven. This is another reason for the 'Investigative Judgment.' A time of Christ blotting out sins from our lives, so we can be part of the 144,000 and stand through the last days without sin, to see Jesus return. Thus, God will have a people in the last days, while the world is in the worst state it has ever been, to REVEAL and bring glory to His name and character.

The 'midnight cry' has been sounded. Jesus has gone into the 'wedding' to receive His kingdom. And the world is now being judged to see who is 'worthy,' being clothed with the wedding garment (righteousness of Christ) to be His guests just as taught in the parable of Matthew 22:11. We MUST follow Christ, by faith, into the most holy place of the heavenly sanctuary, where we can receive of Christ's righteousness and have the right clothing.

Revelation 14:7 ...'Fear God and give glory to Him, for the hour of His judgment is come, and worship Him that made heaven and earth and the sea and the fountains of the waters.'

Will you allow Jesus to cleanse your life today of all sin and clothe you with HIS righteous character, so you are properly dressed for the wedding (Matthew 22:11)? Let us make sure we are of the 'wise' virgins who have oil (the Spirit and grace of God), trimming our lamps (cutting away sin and dross from our lives), so that we can be accepted of the Bridegroom, and not be told by Him, 'depart from me, I never knew you, ye that work iniquity.'