Leviticus 27:10-12

New Revised Standard Version Catholic Edition

¹⁰ Another shall not be exchanged or substituted for it, either good for bad or bad for good; and if one animal is substituted for another, both that one and its substitute shall be holy. ¹¹ If it concerns any unclean animal that may not be brought as an offering to the Lord, the animal shall be presented before the priest. ¹² The priest shall assess it: whether good or bad, according to the assessment of the priest, so it shall be.