"Do you believe in a future Millennium, where Jesus Christ returns to earth, and takes a throne of David in Jerusalem, amongst moral humans?"
After the great tribulation, the false Messiah, and the not-Ezekiel-40-temple:
Revelation 20 (ESV)
2 And he seized the dragon, that ancient serpent, who is the devil and Satan, and bound him for a thousand years, 3 and threw him into the pit, and shut it and sealed it over him, so that he might not deceive the nations any longer, until the thousand years were ended. After that he must be released for a little while. 4 Then I saw thrones, and seated on them were those to whom the authority to judge was committed. Also I saw the souls of those who had been beheaded for the testimony of Jesus and for the word of God, and those who had not worshiped the beast or its image and had not received its mark on their foreheads or their hands. They came to life and reigned with Christ for a thousand years. 5 The rest of the dead did not come to life until the thousand years were ended. This is the first resurrection. 6 Blessed and holy is the one who shares in the first resurrection! Over such the second death has no power, but they will be priests of God and of Christ, and they will reign with him for a thousand years. 7 And when the thousand years are ended, Satan will be released from his prison 8 and will come out to deceive the nations that are at the four corners of the earth, Gog and Magog, to gather them for battle; their number is like the sand of the sea.
Ezekiel 37 (ESV)
24 "My servant David shall be king over them, and they shall all have one shepherd. They shall walk in my rules and be careful to obey my statutes. 25 They shall dwell in the land that I gave to my servant Jacob, where your fathers lived. They and their children and their children's children shall dwell there forever, and David my servant shall be their prince forever. 26 I will make a covenant of peace with them. It shall be an everlasting covenant with them. And I will set them in their land and multiply them, and will set my sanctuary in their midst forevermore. 27 My dwelling place shall be with them, and I will be their God, and they shall be my people. 28 Then the nations will know that I am the Lord who sanctifies Israel, when my sanctuary is in their midst forevermore."
Ezekiel 38 (ESV)
2 "Son of man, set your face toward Gog, of the land of Magog, the chief prince of Meshech and Tubal, and prophesy against him 3 and say, Thus says the Lord God: Behold, I am against you, O Gog, chief prince of Meshech and Tubal. 4 And I will turn you about and put hooks into your jaws, and I will bring you out, and all your army, horses and horsemen, all of them clothed in full armor, a great host, all of them with buckler and shield, wielding swords.
After the great tribulation, the false Messiah, and the not-Ezekiel-40-temple:
Revelation 20 (ESV)
2 And he seized the dragon, that ancient serpent, who is the devil and Satan, and bound him for a thousand years, 3 and threw him into the pit, and shut it and sealed it over him, so that he might not deceive the nations any longer, until the thousand years were ended. After that he must be released for a little while. 4 Then I saw thrones, and seated on them were those to whom the authority to judge was committed. Also I saw the souls of those who had been beheaded for the testimony of Jesus and for the word of God, and those who had not worshiped the beast or its image and had not received its mark on their foreheads or their hands. They came to life and reigned with Christ for a thousand years. 5 The rest of the dead did not come to life until the thousand years were ended. This is the first resurrection. 6 Blessed and holy is the one who shares in the first resurrection! Over such the second death has no power, but they will be priests of God and of Christ, and they will reign with him for a thousand years. 7 And when the thousand years are ended, Satan will be released from his prison 8 and will come out to deceive the nations that are at the four corners of the earth, Gog and Magog, to gather them for battle; their number is like the sand of the sea.
Ezekiel 37 (ESV)
24 "My servant David shall be king over them, and they shall all have one shepherd. They shall walk in my rules and be careful to obey my statutes. 25 They shall dwell in the land that I gave to my servant Jacob, where your fathers lived. They and their children and their children's children shall dwell there forever, and David my servant shall be their prince forever. 26 I will make a covenant of peace with them. It shall be an everlasting covenant with them. And I will set them in their land and multiply them, and will set my sanctuary in their midst forevermore. 27 My dwelling place shall be with them, and I will be their God, and they shall be my people. 28 Then the nations will know that I am the Lord who sanctifies Israel, when my sanctuary is in their midst forevermore."
Ezekiel 38 (ESV)
2 "Son of man, set your face toward Gog, of the land of Magog, the chief prince of Meshech and Tubal, and prophesy against him 3 and say, Thus says the Lord God: Behold, I am against you, O Gog, chief prince of Meshech and Tubal. 4 And I will turn you about and put hooks into your jaws, and I will bring you out, and all your army, horses and horsemen, all of them clothed in full armor, a great host, all of them with buckler and shield, wielding swords.
It appears they have animal sacrifice for sin?
How could that be, Jesus Christ died and shed his blood for the world?
Romans 6:10KJV
10 For in that he died, he died unto sin once: but in that he liveth, he liveth unto God.
Ezekiel 40:38-39KJV
38 And the chambers and the entries thereof were by the posts of the gates, where they washed the burnt offering.
39 And in the porch of the gate were two tables on this side, and two tables on that side, to slay thereon the burnt offering and the sin offering and the trespass offering.
Ezekiel 43:18-19KJV
18 And he said unto me, Son of man, thus saith the Lord God; These are the ordinances of the altar in the day when they shall make it, to offer burnt offerings thereon, and to sprinkle blood thereon.
19 And thou shalt give to the priests the Levites that be of the seed of Zadok, which approach unto me, to minister unto me, saith the Lord God, a young bullock for a sin offering.