If you have ever thought of what heaven would be like, you were probably imagining the millennial kingdom of God. That is the heaven that is spoken about in the Scriptures. There is another heaven where God resides, but the only "heaven" to which humans are admitted is the millennial kingdom of God. When someone dies, their spirit goes to a holding place to await the judgment. If they wish, they can return to earth to enter into the millennial kingdom.
The believer's who are in the millennial kingdom when the doors are sealed are the only ones who will be able to enter eternity without having to experience the judgment. They are the ones who will judge the earth.
The Lord God Almighty El Shaddai