On Earth. God’s purpose from the beginning was always that the Earth should be a place that is filled with his glory and with a people who want to love and serve him (Numbers 14:21; Isaiah 46:18). Jesus Christ is going to return to the Earth (2 Timothy 4:1, Acts 1:6, 11). He will be given power over all the nations of the Earth (Daniel 7:13-14, Revelation 11:15-18), reigning as king from Jerusalem just like his ancestor king David (Luke 1:30-33, 1 Chronicles 17:7-15, Isaiah 9:6-7). It will be a time of peace and plenty, as all the nations of the earth come to learn about the ways of God (Isaiah 2:1-4, 35:1-7, Psalm 72).
“The kingdoms of this world have become the kingdoms of our Lord and of his Christ, and he shall reign for ever and ever” (Revelation 11:15)