weighed in the balances - The Egyptians thought that Osiris weighed the actions of the dead in a literal balance. The Babylonians may have had the same notion, which would give a peculiar appropriateness to the image here used.
found wanting - too light before God, the weigher of actions (1Sa 2:3; Psa 62:9). Like spurious gold or silver (Jer 6:30).