'Nobles' in the Bible

Set up a banner on the bare mountain! Lift up your voice to them! Wave your hand, that they may go into the gates of the nobles.

My heart cries out for Moab! Her nobles flee to Zoar, to Eglath Shelishiyah; for they go up by the ascent of Luhith with weeping; for in the way of Horonaim, they raise up a cry of destruction.

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