TSK · Judges 18:3

then they said to him, "Now say 'Shibboleth;'" and he said "Sibboleth;" for he couldn't manage to pronounce it right: then they laid hold of him, and killed him at the fords of the Jordan. At that time, forty-two thousand of Ephraim fell.

After a little while those who stood by came and said to Peter, "Surely you are also one of them, for your speech makes you known."