Judges 12:6

12:6 then they said to him, “Say ‘Shibboleth!’” If he said, “Sibboleth” (and could not pronounce the word correctly), they grabbed him and executed him right there at the fords of the Jordan. On that day forty-two thousand Ephraimites fell dead.

Genesis 27:22

27:22 So Jacob went over to his father Isaac, who felt him and said, “The voice is Jacob’s, but the hands are Esau’s.”

Matthew 26:73

26:73 After a little while, those standing there came up to Peter and said, “You really are one of them too – even your accent gives you away!”