Judges 12:5

5 In order to keep the Ephraimites from escaping, the Gileadites captured the places where the Jordan could be crossed. When any Ephraimite who was trying to escape would ask permission to cross, the men of Gilead would ask, "Are you an Ephraimite?" If he said, "No,"

Judges 12:5 Meaning and Commentary

Judges 12:5

And the Gileadites took the passages of Jordan before the
Ephraimites
Being either swifter of foot, or going a nearer and shorter way, being better acquainted with their own country:

and it was so, that when those Ephraimites which were escaped said, let
me go over;
the fugitives of Ephraim, as before called, who ran away from the battle, made their escape, and the best of their way to the passages of Jordan, to get over there to their own country:

that the men of Gilead said unto him;
to everyone of them, as they came up,

art thou an Ephraimite?
or an Ephrathite; for so it seems those of the tribe of Ephraim were called, as Jeroboam, ( 1 Kings 11:26 )

if he said, nay; that he was not an Ephraimite;

Judges 12:5 In-Context

3 When I saw that you were not going to, I risked my life and crossed the border to fight them, and the Lord gave me victory over them. So why are you coming up to fight me now?"

4 Then Jephthah brought all the men of Gilead together, fought the men of Ephraim and defeated them. (The Ephraimites had said, "You Gileadites in Ephraim and Manasseh, you are deserters from Ephraim!")

5 In order to keep the Ephraimites from escaping, the Gileadites captured the places where the Jordan could be crossed. When any Ephraimite who was trying to escape would ask permission to cross, the men of Gilead would ask, "Are you an Ephraimite?" If he said, "No,"

6 they would tell him to say "Shibboleth." But he would say "Sibboleth," because he could not pronounce it correctly. Then they would grab him and kill him there at one of the Jordan River crossings. At that time forty-two thousand of the Ephraimites were killed.

7 Jephthah led Israel for six years. Then he died and was buried in his hometown in Gilead.