וַיִּדַּ֨ר יִשְׂרָאֵ֥ל נֶ֛דֶר לַֽיהוָ֖ה וַיֹּאמַ֑ר אִם־נָתֹ֨ן תִּתֵּ֜ן אֶת־הָעָ֤ם הַזֶּה֙ בְּיָדִ֔י וְהַֽחֲרַמְתִּ֖י אֶת־עָרֵיהֶֽם׃
And Israel vowed a vow unto the LORD, and said: ‘If Thou wilt indeed deliver this people into my hand, then I will utterly destroy their cities.’
Find Talmudic references to Numbers 21:2: , passages from the Talmud Bavli and Yerushalmi.