'Mighty' in the Bible

There have also been mighty kings over Jerusalem who have ruled over all the provinces west of the [Euphrates] River, and tax, custom, and toll were paid to them.

and has extended His mercy and lovingkindness to me before the king, his advisers, and all the king’s mighty officials. I was strengthened and encouraged, for the hand of the Lord my God was upon me, and I gathered together outstanding men of Israel to go up with me [to Jerusalem].