'Powers' in the Bible

So I asked the angel who was speaking with me, “What are these?” And he answered me, “These are the horns [the powerful Gentile nations] that have scattered Judah (the Southern Kingdom), Israel (the Northern Kingdom), and Jerusalem (capital city of Judah).”

I asked, “What are these [horns and craftsmen] coming to do?” And he said, “These are the horns (powers) that have scattered Judah so that no man raised up his head [because of the suffering inflicted by the Gentile nations]. But these craftsmen have come to terrify them and make them panic, and throw down the horns of the nations who have lifted up their horns against the land of Judah in order to scatter it.”

with the chariot with the black horses going toward the north country; then the one with the white horses follows after them [because there are two northern powers to overcome], and the chariot with the dappled horses goes toward the south country.”