The "Kingdom of Heaven" is a metaphor.. because "heaven" is a metaphor.. There are biblically 3 heavens.. The third heaven is metaphorical because it beggars description.. (1 Cor 2;9).. meaning its indescribable..
Literally everybody misunderstands what "heaven" is.. because mere men cannot conceive of it(1 Cor 2;9).. accept as a metaphor..
A DIVINE REVELATION OF HEAVEN
by Mary K Baxter
DESCRIBES a LOT more than a metaphor or even a train load of metaphors!
So does Roland Buck’s
ANGELS ON ASSIGNMENT. . . . which is free online.