Berean Study Bible
If you make a vow to the LORD your God, do not be slow to keep it, because He will surely require it of you, and you will be guilty of sin.

King James Bible
When thou shalt vow a vow unto the LORD thy God, thou shalt not slack to pay it: for the LORD thy God will surely require it of thee; and it would be sin in thee.

American Standard Version
When thou shalt vow a vow unto Jehovah thy God, thou shalt not be slack to pay it: for Jehovah thy God will surely require it of thee; and it would be sin in thee.

Darby Bible Translation
When thou vowest a vow to Jehovah thy God, thou shalt not delay to perform it; for Jehovah thy God will certainly require it of thee, and it shall be sin in thee.

Douay-Rheims Bible
When thou hast made a vow to the Lord thy God, thou shalt not delay to pay it: because the Lord thy God will require it. And if thou delay, it shall be imputed to thee for a sin.

English Revised Version
When thou shalt vow a vow unto the LORD thy God, thou shalt not be slack to pay it: for the LORD thy God will surely require it of thee; and it would be sin in thee.

Young's Literal Translation
'When thou vowest a vow to Jehovah thy God, thou dost not delay to complete it; for Jehovah thy God doth certainly require it from thee, and it hath been in thee -- sin.