Deuteronomy 23:21-23

English Standard Version

^21 (A)“If you make a vow to the Lord your God, you shall not delay fulfilling it, for the Lord your God will surely require it of you, and you will be guilty of sin. ²² But if you refrain from vowing, you will not be guilty of sin. ²³ You shall be careful to do what has passed your lips, for you have voluntarily vowed to the Lord your God what you have promised with your mouth.