'Mighty One' in the Bible

I will hand it over to a mighty one and a mighty one of the nations; he will most certainly deal with it. I have driven it away in accordance with its wickedness.

so that none of the trees by the waters may exalt themselves because of their height, nor set their top among the clouds, nor their well-watered mighty ones stand [arrogantly] in their height. For they have all been handed over to death, to the earth beneath, among the sons of men, with those who go down to the pit (the grave).”