Jesus said "my kingdom is not of this world ...." So there has to be another one
MY ANSWER: Jesus meant his spiritual kingdom of light is not of Satan's spiritual kingdom of darkness.
Ephesians 2:2 the devil-the commander of....the unseen world...Luke 17:22 You won't see it...2 Corinthians 5:1 we look at what we can't see...2 Corinthians 5:7 We live by believing, not by seeing...Hebrews 11:7 God warned him (Noah) about the things that could not yet be seen.
Colossians 1:12-13 You will receive a share in the kingdom of light. He has saved us from the kingdom of darkness. He has brought us into the kingdom of the Son he loves...Isaiah 2:3 People from many nations will go there...Revelation 5:9 They come from every tribe, language, people and nation...1 Peter 2:5 There you will be holy priest...Revelation 5:10 You have made them priest to serve our God.
*The material world: senses - 1) Any of the manners by which living beings perceive the physical world: for humans sight, smell, hearing, touch, taste. 2) Perception through the intellect; apprehension; awareness.
*Satan's spiritual world: Revelation 17:5 THE GREAT CITY OF BABYLON...Colossians 1:13 kingdom of darkness...Psalm 23:4 the valley of deep darkness..Deuteronomy 32:22 The kingdom of the dead...Revelation 16:10 The kingdom of the beast...Hebrews 2:14 the kingdom of death
*Christ's spiritual world: Kingdom of light. Luke 17:20 it's not something you can see..v21 God's kingdom is among you...