“Paul formerly Saul is the best example of the reforms God’s kingdom brings about when he takes over from humans. When still called Saul, Paul was a persecutor of the servants of the Lord. He encouraged those who killed them (Stephen) and travelled long distances looking to arrest and prosecute the servants of God. Look at Paul after the Lord brought his government to him. So Paul was reformed inwardly and instead of killing ‘for God’, he was then prepared to die for the kingdom. So the reforms happen within individuals who are willing to obey the Spirit and this obedience to the Spirit is the reforming. Paul was no longer doing things he thought were for God; Instead he was obeying the Spirit and really doing God’s will on earth as it is in heaven. Paul was then sent to preach to the gentiles and more and more people received the Spirit and were reformed inwardly by that sane Spirit. So these reforms are not a one time event but an individual one. The reformed individual then spreads the message of the good news of the gospel and more individuals are reformed and so on until the whole earth is full of the knowledge of the glory of God as the waters cover the sea!” https://www.quora.com/What-reforms-will-Gods-Kingdom-according-to-the-Bible-bring-about-when-he-takes-over-from-all-human-governments-and-governs-the-entire-Earth#:~:text=Paul%20formerly%20Saul,cover%20the%20sea!