Many in the religious world are confused in thinking that the kingdom of God has not yet been revealed, but such thinking would have been a shock to Paul and the first century Christians. The brothers and sisters at Colossi were told:
“giving thanks to the Father who has qualified us to be partakers of the inheritance of the saints in the light. He has delivered us from the power of darkness and conveyed us into the kingdom of the Son of His love, in whom we have redemption through His blood,the forgiveness of sins.” (Colossians 1:12-14).
Through faith in the gospel of Christ, the citizens of Colossi had become present-day citizens of God’s kingdom, and we can do the same (Philippians 3:20).
The kingdom of God is present in the world today, but it is not a kingdom that originated with the world (John 18:36). God’s kingdom is not limited by physical borders (Luke 17:20-21), nor does it suffer from political turmoil as the leadership remains the same at all times (1 Timothy 6:15). It’s a kingdom of citizens who seek to serve (Luke 22:24-26). It’s a kingdom open to all but entered into by few (Matthew 7:21; John 3:3-5). It’s a kingdom started by the love of God and kept by the strength of God so you can be a part of the kingdom of God (Matthew 16:18-19; Hebrews 12:28-29). EA
“And in the days of these kings the God of heaven will set up a kingdom which shall never be destroyed; and the kingdom shall not be left to other people; it shall break in pieces and consume all these kingdoms, and it shall stand forever.” (Daniel 2:44)
King Jesus’ Kingdom by Allen Webster
Here is Power by Randal Matheny
The Gospel is For All by Eugene Adkins