Judges 12:6
Then said they unto him, Say now Shibboleth: and he said Sibboleth: for he could not frame to pronounce it right. Then they took him, and slew him at the passages of Jordan: and there fell at that time of the Ephraimites forty and two thousand.
Cross-references
Judges 18:3
Parallel
Judges 18:3 shows recognition by voice—similar to identifying Ephraimites by their accent in the Shibboleth test.
Matthew 26:73
Parallel
In Matthew 26:73, Peter's accent reveals his Galilean origin — a similar speech test exposing identity.
Mark 14:70
Parallel
Mark 14:70 likewise recounts Peter's accent giving him away — a parallel to the Shibboleth test.