That which is gone out from your lips you shall keep and perform; even a freewill offering, according as you have vowed unto the LORD your God, which you have promised with your mouth.
When you come into the standing grain of your neighbor, then you may pluck the heads with your hand; but you shall not move a sickle unto your neighbor's standing grain.
And the children of Israel struck them not, because the leaders of the congregation had sworn to them by the LORD God of Israel. And all the congregation murmured against the leaders.