When you make a vow to the Lord your God, you must not be slow to pay it, for the Lord your God will surely require it of you, and it would be a sin to you.
That which goes out of your lips you must keep and do, even a freewill offering, just as you have vowed to the Lord your God, what you have promised with your mouth.
Now the Israelites did not attack them, for the leaders of the congregation had sworn an oath to them by the Lord, the God of Israel, so the congregation murmured against the leaders.