'Nobles' in the Bible

Lift ye up a banner upon the high mountain, exalt the voice unto them, shake the hand, that they may go into the gates of the nobles.

They shall call the nobles thereof to the kingdom, but none shall be there, and all her princes shall be nothing.

Thus saith the LORD, your redeemer, the Holy One of Israel; For your sake I have sent to Babylon, and have brought down all their nobles, and the Chaldeans, whose cry is in the ships.