Deuteronomy 3:6

And we utterly destroyed them, as we did to Sihon king of Heshbon, utterly destroying the men, women, and children of every city.

Deuteronomy 2:34

And we took all his cities at that time, and utterly destroyed the men, and the women, and the little ones of every city, we left none to remain.

Deuteronomy 2:24

Arise ye, take your journey, and pass over the river Arnon: behold, I have given into thy hand Sihon the Amorite, king of Heshbon, and his land: begin to possess it, and contend with him in battle.

Psalm 135:10-12

Who smote great nations, and slew mighty kings;

Leviticus 27:28-29

Notwithstanding, no devoted thing that a man shall devote to the LORD of all that he hath, both of man and beast, and of the field of his possession, shall be sold or redeemed: every devoted thing is most holy to the LORD.

Numbers 21:2

And Israel vowed a vow to the LORD, and said, If thou wilt indeed deliver this people into my hand, then I will utterly destroy their cities.

Deuteronomy 3:2

And the LORD said to me, Fear him not: for I will deliver him, and all his people, and his land, into thy hand; and thou shalt do to him as thou didst to Sihon king of the Amorites, who dwelt at Heshbon.

Deuteronomy 20:16-18

But of the cities of these people which the LORD thy God doth give thee for an inheritance, thou shalt save alive nothing that breatheth:

Joshua 11:14

And all the spoil of these cities, and the cattle, the children of Israel took for a prey to themselves: but every man they smote with the edge of the sword, until they had destroyed them, neither left they any to breathe.

Psalm 136:19-21

Sihon king of the Amorites: for his mercy endureth for ever:

Treasury of Scripture Knowledge

Summary

And we utterly destroyed them, as we did unto Sihon king of Heshbon, utterly destroying the men, women, and children, of every city.

Bible References

We utterly

Deuteronomy 2:34
And we took all his cities at that time, and utterly destroyed the men, and the women, and the little ones of every city, we left none to remain.
Deuteronomy 20:16
But of the cities of these people which the LORD thy God doth give thee for an inheritance, thou shalt save alive nothing that breatheth:
Leviticus 27:28
Notwithstanding, no devoted thing that a man shall devote to the LORD of all that he hath, both of man and beast, and of the field of his possession, shall be sold or redeemed: every devoted thing is most holy to the LORD.
Numbers 21:2
And Israel vowed a vow to the LORD, and said, If thou wilt indeed deliver this people into my hand, then I will utterly destroy their cities.
Joshua 11:14
And all the spoil of these cities, and the cattle, the children of Israel took for a prey to themselves: but every man they smote with the edge of the sword, until they had destroyed them, neither left they any to breathe.

As we did

Deuteronomy 3:2
And the LORD said to me, Fear him not: for I will deliver him, and all his people, and his land, into thy hand; and thou shalt do to him as thou didst to Sihon king of the Amorites, who dwelt at Heshbon.
Deuteronomy 2:24
Arise ye, take your journey, and pass over the river Arnon: behold, I have given into thy hand Sihon the Amorite, king of Heshbon, and his land: begin to possess it, and contend with him in battle.
Psalm 135:10
Who smote great nations, and slew mighty kings;
Psalm 136:19
Sihon king of the Amorites: for his mercy endureth for ever: