The Millennial Kingdom

Revelation 20:2-3 

² He laid hold of the dragon, that serpent of old, who is the Devil and Satan, and bound him for a thousand years; ³ and he cast him into the bottomless pit, and shut him up, and set a seal on him, so that he should deceive the nations no more till the thousand years were finished. But after these things he must be released for a little while.

The end of the great tribulation period and the one thousand year reign of Jesus Christ on earth will begin when Satan is bound and his influence on earth is completely removed. At this point; those left on the earth will no longer be under the influence of Satanic activity and a new era of unmatched prosperity will be ushered in on the whole earth.

Jesus Christ will be the king of the whole earth

Isaiah 9:6-7 

⁶ For unto us a Child is born,
Unto us a Son is given;
And the government will be upon His shoulder.
And His name will be called
Wonderful, Counselor, Mighty God,
Everlasting Father, Prince of Peace.
⁷ Of the increase of His government and peace
There will be no end,
Upon the throne of David and over His kingdom,
To order it and establish it with judgment and justice
From that time forward, even forever.
The zeal of the Lord of hosts will perform this.

The reason that the earth will be transformed into a golden, peaceful era is the one who will rule the whole earth is the only perfectly righteous ruler who ever existed and ever will; none other than the Lord Jesus Christ himself! Jesus Christ will personally see to it that justice and righteousness are the pillars of his rule forever. (Isaiah 2:2-4, Revelation 2:27)

Glorified Old and New Testament Saints will rule with Christ

1 Corinthians 6:2 

 ² Do you not know that the saints will judge the world? And if the world will be judged by you, are you unworthy to judge the smallest matters?

Jesus will be the king on the whole earth but will be assisted by the Old and New Testament saints. They will co-rule in their glorified states over those born upon the earth during the thousand year reign of Christ upon the earth. (2 Timothy 2:12)

People will live a long time

Isaiah 65:20 

²⁰ “No more shall an infant from there live but a few days,
Nor an old man who has not fulfilled his days;
For the child shall die one hundred years old,
But the sinner being one hundred years old shall be accursed.

Humans will live a lot longer during the millennial kingdom.

Animals will not fight with other animals or humans

Isaiah 11:6-9 

 ⁶ “The wolf also shall dwell with the lamb,
The leopard shall lie down with the young goat,
The calf and the young lion and the fatling together;
And a little child shall lead them.
⁷ The cow and the bear shall graze;
Their young ones shall lie down together;
And the lion shall eat straw like the ox.
⁸ The nursing child shall play by the cobra’s hole,
And the weaned child shall put his hand in the viper’s den.
⁹ They shall not hurt nor destroy in all My holy mountain,
For the earth shall be full of the knowledge of the Lord
As the waters cover the sea.

The animal kingdom will be restored to a harmonious herbivore status and all creatures will again be submissively subject to humans and their rule on earth.