Judges 12:6-7

they would tell him to say “Shibboleth.” If he was from Ephraim, he would say “Sibboleth,” because people from Ephraim cannot pronounce the word correctly. Then they would take him and kill him at the shallow crossings of the Jordan. In all, 42,000 Ephraimites were killed at that time. Jephthah judged Israel for six years. When he died, he was buried in one of the towns of Gilead.