Adam Clarke on Obadiah 1:7

All the men of thy confederacy - The Chaldeans are here intended, to whom the Idumeans were attached, and whose agents they became in exercising cruelties upon the Jews.

Have brought thee even to the border - Have hemmed thee in on every side, and reduced thee to distress. Or, they have driven thee to thy border; cast thee out of thy own land into the hands of thine enemies.

The men that were at peace with thee - The men of thy covenant, with whom thou hadst made a league.

That eat thy bread - That professed to be thy firmest friends, have all joined together to destroy thee.

Have laid a wound - Placed a snare or trap under thee. See Newcome.

There is none understanding in him - Private counsels and public plans are all in operation against thee; and yet thou art so foolish and infatuated as not to discern thy own danger.