ThebeastdescribedbyJohninRevelation13included7heads,buttheonlyheadexistingatthetimeJohnsawthisnondescriptbeast(whichincludedthemostpowerfulcharacteristicsofallthebeastssymbolizingitspredecessors)wasthatofthefourthbeastofDaniel,containingtheseventhhead,andalsothetenhorns.Sothespecific“oneofitsheads”thatwaswoundedtodeath(Rev.13:3)wastheseventhheadoftheRomanEmpire–theheadoutofwhichtenhornsgrew.

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The beast described by John in Revelation 13 included 7 heads, but the only head existing at the time John saw this nondescript beast (which included the most powerful characteristics of all the beasts symbolizing its predecessors) was that of the fourth beast of Daniel , containing the seventh head, and also the ten horns. So the specific “one of its heads” that was wounded to death ( Rev. 13:3 ) was the seventh head of the Roman Empire – the head out of which ten horns grew.