We read in Revelation 21:3 these words: Behold, the tabernacle of God is with men, and He will dwell with them, and they shall be His people. This is a prophecy about the eternal state of God's people. We will live with God forever. God Himself will be with them and be there God.
The word tabernacle simply means dwelling place. The desire of God has always been to dwell with His people. In the Old Testament God dwelt among His people in the wilderness. God's tabernacle was a tent of meeting, where He lived indirectly with them. The tabernacle in the wilderness was a place of sacrifice to atone for the sins of the people.
In the New Testament God the Father tabernacled among His people through Jesus, His only begotten Son. And the Word became flesh and dwelt among us (John 1:14). Jesus is God incarnate in the flesh. God was in Christ dwelling among His people. Jesus said, the Father who dwells in me does the works (John 14:10).
In the new heaven and new earth, God will dwell or tabernacle directly and intimately with His people. His manifest glory will be seen and experienced by all. It will be eternal communion with God. And God will wipe away every tear from their eyes; there shall be no more death, nor sorrow, nor crying. There shall be no more pain, for the former things have passed away (Revelation 21:4).