'Staff' in the Bible

Thus said Jehovah of Hosts: Again dwell do old men and old women, In broad places of Jerusalem, And each his staff in his hand, Because of abundance of days.

And I take My staff Pleasantness, and cut it asunder, to make void My covenant that I had made with all the peoples:

And I cut asunder my second staff, Bands, to break the unity between Judah and Israel.