New King James Version
So Israel made a vow to the LORD, and said, “If You will indeed deliver this people into my hand, then I will utterly destroy their cities.”

King James Bible
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.

American Standard Version
And Israel vowed a vow unto Jehovah, and said, If thou wilt indeed deliver this people into my hand, then I will utterly destroy their cities.

Berean Study Bible
So Israel made a vow to the LORD: “If You will deliver this people into our hands, we will devote their cities to destruction.”

Douay-Rheims Bible
But Israel binding himself by vow to the Lord, said: It thou wilt deliver this people into my hand, I will utterly destroy their cities.

English Revised Version
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.

World English Bible
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."

Young's Literal Translation
And Israel voweth a vow to Jehovah, and saith, 'If Thou dost certainly give this people into my hand, then I have devoted their cities;'

Numbers 21:2 Additional Translations ...