What arre the connotations of this Pasuk?
Rashi and Targum Onkelos: "va'Niram Avad Cheshbon" - 'They (Mo'av) lost their sovereignty over Cheshbon'; "Ad Divon" - 'and it was removed from Divon'; "va'Nashim ad Nofach" - 'their land was laid waste up to Nofach'; "asher ad Meidva" - 'which bordered Meidva' 1 .
Seforno: It is referring to Yisrael's demolition of the kingdom of Sichon and his army at the hand of Yisrael. "Vaniram Avad Cheshbon" - 'And Cheshbon lost its sovreignty, its fire and its flame 2 up till Divon'.
[Mo'av's] heirs lost Cheshbon and the entire land up to Divon.
Bava Basra, 78b: "va'Niram" - 'The Rasha says that there is no High One (Ein Ram)'; "Avad Cheshbon" - 'the reckoning of the Master of the World is lost'; "va'Nashim ad Novach" - 'there will cone a fire that does not require fanning'; 3 "asher Ad Meidva" - 'until his Soul is saddened', or 'until Hakadosh-Baruch-Hu does what He wants with him'. 4