Judges 12:5

5 The men of Gil'ad cut off Efrayim from the crossings over the Yarden, and whenever anyone from Efrayim tried to escape and said, "Let me go across," the men of Gil'ad would ask him, "Are you from Efrayim?" and 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 weren't rescuing me, I put my life in my own hands and went over to attack the people of 'Amon; and ADONAI gave them over into my power. So why have you come up today to fight me?"

4 Then Yiftach gathered together all the men of Gil'ad and fought with Efrayim, and the men of Gil'ad defeated Efrayim; because they were saying, "You Gil'ad men who live in Efrayim and M'nasheh have deserted Efrayim!"

5 The men of Gil'ad cut off Efrayim from the crossings over the Yarden, and whenever anyone from Efrayim tried to escape and said, "Let me go across," the men of Gil'ad would ask him, "Are you from Efrayim?" and if he said, "No,"

6 they would tell him to say "Shibbolet." If he said, "Sibbolet," because he could not make his mouth pronounce it right, they took hold of him and killed him on the spot at the Yarden crossing; at that time 42,000 men of Efrayim died.

7 Yiftach judged Isra'el for six years. Then Yiftach from Gil'ad died, and he was buried in one of the cities of Gil'ad.