Judges 12:4-6

ASV(i) 4 Then Jephthah gathered together all the men of Gilead, and fought with Ephraim; and the men of Gilead smote Ephraim, because they said, Ye are fugitives of Ephraim, ye Gileadites, in the midst of Ephraim, [and] in the midst of Manasseh. 5 And the Gileadites took the fords of the Jordan against the Ephraimites. And it was so, that, when [any of] the fugitives of Ephraim said, Let me go over, the men of Gilead said unto him, Art thou an Ephraimite? If he said, Nay; 6 then said they unto him, Say now Shibboleth; and he said Sibboleth; for he could not frame to pronounce it right: then they laid hold on him, and slew him at the fords of the Jordan. And there fell at that time of Ephraim forty and two thousand.