Let's vote for the option that man cannot offer us........the one that Jesus preached, the kingdom of God which comes not with our careful observation (external physical realm), and of which Jesus Christ is the Head. Leaving all kingdoms of the world to God, because our citizenship is not here but in His kingdom. The gospel which we receive........is the gospel of His kingdom.
Matthew 4:17 From that time Jesus began to preach, and to say, Repent: for the kingdom of heaven is AT HAND.
Matthew 10:7 And as ye go, preach, saying, The kingdom of heaven is AT HAND.
Mark 1:14-15
Now after that John was put in prison, Jesus came into Galilee, PREACHING THE GOSPEL OF THE KINGDOM OF GOD,
And saying, The time is fulfilled, and the kingdom of God is AT HAND: repent ye, and believe the gospel.