Israel vowed a vow to Yahweh, and said, "If you will indeed deliver this people into my hand, then I will utterly destroy their cities."
TSK
TSK · Deuteronomy 3:6
Treasury of Scripture Knowledge references in WEB.
Numbers 21:2
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Deuteronomy 2:34
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We took all his cities at that time, and utterly destroyed every inhabited city, with the women and the little ones; we left none remaining:
But of the cities of these peoples, that Yahweh your God gives you for an inheritance, you shall save alive nothing that breathes;
Joshua 11:14
TSK
The children of Israel took all the spoil of these cities, with the livestock, as spoils for themselves; but every man they struck with the edge of the sword, until they had destroyed them. They didn't leave any who breathed.
Psalms 136:19
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Sihon king of the Amorites; for his loving kindness endures forever;