וַיֹּ֣אמֶר ל֔וֹ כֹּ֖ה אָמַ֣ר יִפְתָּ֑ח לֹֽא־לָקַ֤ח יִשְׂרָאֵל֙ אֶת־אֶ֣רֶץ מוֹאָ֔ב וְאֶת־אֶ֖רֶץ בְּנֵ֥י עַמּֽוֹן׃
at sinabi sa kanya, “Ganito ang sabi ni Jefte: Hindi kinuha ng Israel ang lupain ng Moab ni ang lupain ng mga Ammonita.
Sforno
וישב ישראל בארץ האמורי, from all that has been reported here it is clear that the Israelites at that time did not settle in territory under the rule of the Moabites. This is precisely the point made by Yiphtach in Judges 11,15 when he rejected the claims of the Moabites at the time he was judge, saying that Israel had never taken land belonging to either Ammon or Moav