Deuteronomy 23:21-23

New American Standard Bible

²¹ “^(A)When you make a vow to the Lord your God, you shall not delay to pay it, for the Lord your God will certainly require it of you, and it will be a sin ^[a]for you. ²² However, if you refrain from making vows, it will not be a sin ^[b]for you. ²³ You shall be careful and perform what goes out of your lips, since in fact you have vowed a ^[c]voluntary offering to the Lord your God, whatever you have ^[d]promised.