In the New Jerusalem, we will have perfected bodies with pure minds like Jesus. On Earth now, our minds and works are imperfect (filthy rags). Will our perfected minds in the New Jerusalem even allow us to remember and look at the sins that we have done while on the old Earth? When God says that he will wipe away the tears from our eyes, does that mean he will remove our memory of this life on earth? Perhaps we will be so busy and excited exploring the New Jerusalem and Heaven that we won’t have the time or even care to think about our past life on earth.
Isaiah 65:17-19 says in the Millennium Israel will no longer remember the past and the sound of weeping and crying will no longer be heard in Jerusalem. The Bible doesn’t say for sure how this will work for the Church, but it could be very similar. Either we won’t remember our past life at all or if we do it will be with the complete understanding that it wasn’t us but the sin nature within us that produced such behavior. Paul said this is the way the Lord sees us now (Romans 7:20) and that’s why there is no condemnation for those who are in Christ Jesus (Romans 8:1).