Empires come and go. Why? Because God is the Possessor of Heaven and Earth. He instituted a ‘law’ in the promise He gave to Abram about his descendants who would be enslaved,
‘Know for certain that your descendants will be strangers in a country not their own, and they will be enslaved and ill-treated four hundred years…. In the fourth generation your descendants will come back here, for the sin of the Amorites has not yet reached its full measure.’ Genesis 15:13,17
Empires become big and then they sin. God leaves them until their ‘measure of sin’ is full. Then another growing empire takes them over. For example, the Assyrian empire was superseded by the Babylonian-, Persian-, Greek- and the Roman empire at the time of Christ.
The Roman Empire lasted about 500 years. The average ‘age’ for empires is around 250 years. There were many other empires the Bible does not mention like the British – and Mongol empires.
The question is, how long will the Empire (Kingdom) of God last? The answer is, eternally. God will remove the kingdom of Satan,
‘The kingdom of the world has become the Kingdom of our Lord and of His Christ, and He will reign for ever and ever.’ Revelation 11:15b
Jesus also warned,
‘Any kingdom divided against itself will be ruined, and a house divided against itself will fall.’ Luke 11:17
God sorts out all divisions, rebellions and rejections of His Kingdom in the here and now. On this side of the grave all people have the opportunity to choose to accept or reject God, Jesus and the Holy Spirit.
Therefore the rebellious, those who want their own kingdom and those who are not interested in God, decide to remain outside His Kingdom. The disobedient who love the pleasures of the world rather than the pleasure of eternal life, make their decision now. God eliminates all divisions.
What remains are God’s people united in love for Him, saved by Jesus and filled with the Holy Spirit. What a glorious wonderful wise God! God’s Kingdom (Empire) will last for ever and ever. Amen!