slender reed, a

slender reed, a

A weak and unreliable support. This metaphor dates from biblical times, appearing in both Old and New Testaments. In the former, in the books of Isaiah and 2 Kings, it was applied to Egypt, which was variously described as a “broken” or “bruised” reed, not to be trusted if the Assyrians made war on the Hebrews. The term persisted into the mid-twentieth century but is heard less often today.
The Dictionary of Clichés by Christine Ammer
See also:
  • weak sister
  • bosom buddy/friend
  • out of the ark
  • not trust someone as far as one can throw him/her
  • (as) old as Methuselah
  • on top of the world, to be
  • on a biblical scale
  • trust someone as far as one could throw him, not to/I wouldn't
  • bottle up feelings, to
  • broken reed