Permit not your mouth to cause your flesh to sin; neither say before the angel, that it was an error: why should God be angry at your voice, and destroy the work of your hands?
He shall not alter it, nor change it, a good for a bad, or a bad for a good: and if he shall at all change animal for animal, then it and the exchange thereof shall be holy.
But if he is too poor to pay your valuation, then he shall present himself before the priest, and the priest shall value him; according to his ability that vowed shall the priest value him.
If a soul commits a trespass, and sins through ignorance, in the holy things of the LORD; then he shall bring for his trespass unto the LORD a ram without blemish out of the flocks, with your valuation by shekels of silver, after the shekel of the sanctuary, for a trespass offering: