'Power' in the Bible

in the third year of his reign, he made a feast for all his princes and his servants; the power of Persia and Media, the nobles and princes of the provinces, being before him.

In those letters, the king granted the Jews who were in every city to gather themselves together, and to defend their life, to destroy, to kill, and to cause to perish, all the power of the people and province that would assault them, their little ones and women, and to plunder their possessions,

All the acts of his power and of his might, and the full account of the greatness of Mordecai, to which the king advanced him, aren't they written in the book of the chronicles of the kings of Media and Persia?