Judges 12:4-6

New Catholic Bible

⁴ Jephthah then summoned the Gileadites and they fought against the Ephraimites. The Gileadites struck down the Ephraimites, because the Ephraimites had said, “You Gileadites are nothing more than refugees from Ephraim and Manasseh.”

⁵ The Gileadites captured the fords of the Jordan that lead to Ephraim. When one of the survivors of the Ephraimites said, “Let us cross over,” the Gileadites said to him, “Are you an Ephraimite?” If he replied, “No,” ⁶ then they said to him, “Say Shibboleth.” If he said, “Sibboleth,” because he could not pronounce it correctly, they would seize him and kill him at the fords of the Jordan. At that time forty-two thousand Ephraimites were killed.