Judges 11:12, 13, 14, 15, 32, 33

Then Jephthah sent messengers to the Ammonite king with the question: “What do you have against me that you have attacked my country?”

The king of the Ammonites answered Jephthah’s messengers, “When Israel came up out of Egypt, they took away my land from the Arnon to the Jabbok, all the way to the Jordan. Now give it back peaceably.”

Jephthah sent back messengers to the Ammonite king

saying: “This is what Jephthah says: Israel did not take the land of Moab or the land of the Ammonites.

Then Jephthah went over to fight the Ammonites, and the LORD gave them into his hands.

He devastated twenty towns from Aroer to the vicinity of Minnith, as far as Abel Keramim. Thus Israel subdued Ammon.