The Kingdom Of God Comes In Two Phases

The Kingdom of God will be established in two phases. The following is take from this website:

QUOTE

In the current age, the kingdom of heaven is spiritual, existing within the hearts of believers (Luke 17:21). Later, the kingdom will be manifest physically, when the Lord Jesus establishes His throne on this earth (Revelation 11:15).

UNQUOTE

Phase 1 - unobserved

Being asked by the Pharisees when the kingdom of God would come, he answered them, "The kingdom of God is not coming in ways that can be observed, nor will they say, 'Look, here it is!' or 'There!' for behold, the kingdom of God is in the midst of you." (Luke 17:20-21 ESV)

Phase 2 - loudly proclaimed
Then the seventh angel blew his trumpet, and there were loud voices in heaven, saying, "The kingdom of the world has become the kingdom of our Lord and of his Christ, and he shall reign forever and ever." (Revelation 11:15 ESV)