The Kingdom of God is found within a person and is the domain where God's power rules and super-rules over all else. The Kingdom of Heaven is the place where this power of God's rulership must reign. God's power must have a place where it can reign, and that place is in the heavenly realm; but Jesus prayed that God's will in Heaven be done also on Earth, fod God truly rules over all.
Babylon, the great harlot was adorned in fine linen, purple, scarlet, gold, precious stones , and pearls, etc., but she was sitting in falseness. The main system of religion is that harlot.
Israel, the church, is taken into to the captivity of its confusion in Babylon bacause of the abominable things that it has done against God, so God begins to show Ezekiel why all of these things are happening to Israel is baucause of their unfaithfulness.