Matthew 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!"
Judges 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.
Nehemiah 13:24
Half of their children spoke the language of Ashdod (or the language of one of the other peoples mentioned) and were unable to speak the language of Judah.
Luke 22:59-60
And after about an hour still another insisted, "Certainly this man was with him, because he too is a Galilean."
John 18:26-27
One of the high priest's slaves, a relative of the man whose ear Peter had cut off, said, "Did I not see you in the orchard with him?"