Numbers 21:26
JPS-1917כִּ֣י חֶשְׁבּ֔וֹן עִ֗יר סִיחֹ֛ן מֶ֥לֶךְ הָאֱמֹרִ֖י הִ֑וא וְה֣וּא נִלְחַ֗ם בְּמֶ֤לֶךְ מוֹאָב֙ הָֽרִאשׁ֔וֹן וַיִּקַּ֧ח אֶת־כׇּל־אַרְצ֛וֹ מִיָּד֖וֹ עַד־אַרְנֹֽן׃
For Heshbon was the city of Sihon the king of the Amorites, who had fought against the former king of Moab, and taken all his land out of his hand, even unto the Arnon.
Rashi Commentary
והוא נלחם AND HE (SIHON) HAD FOUGHT [AGAINST THE FORMER KING OF MOAB] — Why is it necessary that this should be written? Because it is said (Deuteronomy 2:9), “Harass not Moab”, and Heshbon belonged to Moab (and therefore should not have been attacked), it (Scripture) tells us that Sihon had taken it from them, and through him it (Heshbon) became permissible to Israel as an object of attack (Chullin 60b; Gittin 38a). מידו means FROM HIS POSSESSION (Bava Metzia 56b).
Other Translations
כִּ֣י חֶשְׁבּ֔וֹן עִ֗יר סִיחֹ֛ן מֶ֥לֶךְ הָאֱמֹרִ֖י הִ֑וא וְה֣וּא נִלְחַ֗ם בְּמֶ֤לֶךְ מוֹאָב֙ הָֽרִאשׁ֔וֹן וַיִּקַּ֧ח אֶת־כׇּל־אַרְצ֛וֹ מִיָּד֖וֹ עַד־אַרְנֹֽן׃
For Ḥeshbon was the city of Siĥon the king of the Emori, who had fought against the former king of Mo᾽av, and taken all his land out of his hand, as far as Arnon.