Suffer not your mouth to cause your flesh to sin; neither say you 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 beast for beast, then it and the exchange thereof shall be holy.
But if he be poorer than your estimation, 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 commit a trespass, and sin through ignorance, in the holy things of the LORD; then he shall bring for his trespass to the LORD a ram without blemish out of the flocks, with your estimation by shekels of silver, after the shekel of the sanctuary, for a trespass offering.