In Shoftim Perek 12, it speaks of the people of גִלְעָ֔ד. Who are these people? They fight against the people of Ephraim and I am just confused which shevet they are from?
Additionally, it says in 12:6 that 42,000 men of Ephraim were killed by the people of Gilad. Since Yiftach was the leader of Gilad, was this happening with his permission? Did he support the killings of Ephraim?
Lastly, I thought Yiftach was a Shofet for Bnei Yisroel as a whole, but it seems he did not rule over Ephraim?
Thank you in advance for your help!