And if someone is too poor to pay the valuation, then he shall be made to stand before the priest, and the priest shall value him; the priest shall value him according to what the vower can afford.
He shall not exchange it or make a substitute for it, good for bad, or bad for good; and if he does in fact substitute one animal for another, then both it and the substitute shall be holy.
"If anyone commits a breach of faith and sins unintentionally in any of the holy things of the LORD, he shall bring to the LORD as his compensation, a ram without blemish out of the flock, valued[5] in silver shekels,[6] according to the shekel of the sanctuary, for a guilt offering.
Let not your mouth lead you[3] into sin, and do not say before the messenger[4] that it was a mistake. Why should God be angry at your voice and destroy the work of your hands?