Judges 12:6

Then they said to him, Say now Stachys; and he did not rightly pronounce it so: and they took him, and slew him at the fords of Jordan; and there fell at that time of Ephraim two and forty thousand.

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.

then they said to him, “Now say ‘Shibboleth;’” and he said “Sibboleth”; for he couldn’t manage to pronounce it correctly, then they seized him and killed him at the fords of the Jordan. At that time, forty-two thousand of Ephraim fell.