וַיִּקַּח֙ יִשְׂרָאֵ֔ל אֵ֥ת כָּל־הֶעָרִ֖ים הָאֵ֑לֶּה וַיֵּ֤שֶׁב יִשְׂרָאֵל֙ בְּכָל־עָרֵ֣י הָֽאֱמֹרִ֔י בְּחֶשְׁבּ֖וֹן וּבְכָל־בְּנֹתֶֽיהָ׃
And Israel took all these cities; and Israel dwelt in all the cities of the Amorites, in Heshbon, and in all the towns thereof.
Read halakhic rulings (Jewish law) on Numbers 21:25: and classical halakhic sources.