Judges 6:8

6:8 he sent a prophet to the Israelites. He said to them, “This is what the Lord God of Israel says: ‘I brought you up from Egypt and took you out of that place of slavery.

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.