This
Revelation 11:15 verse about
plural kingdoms of this world becoming Christ's is different from when Christ became king of
a single kingdom. That establishment of Christ's
single kingdom of the New Covenant in His blood happened at Christ's resurrection-day ascension when God "set His king upon His holy hill of Zion" (
Psalms 2:6) as our Great High Priest "king of kings". This crowning of Christ as the High Priest "king of kings" never has an end to His continuous reign as our intercessor.
But those
plural kingdoms of this world (over which Satan had once boasted having the power and glory of these kingdoms in
Luke 4:5-7) were to become Christ's when Satan was destroyed and turned into ashes, as in
Ezekiel 28:18-19. Christ was then to confiscate all those plural kingdoms as His own when He broke that statue into dust on the wind. This is why Christ is pictured as wearing those "MANY crowns" of the kingdoms of this world in
Revelation 19:12 - not to be confused with the
single crown of His High Priesthood which Christ has continually worn since His resurrection-day ascension.