Leviticus 27:10-12

Tree of Life Version

¹⁰ He is not to replace it or exchange it, either good for bad, or bad for good. But if he does exchanges one animal for another, then both it and the one for which it is exchanged will become holy. ¹¹ If it is any sort of unclean animal that may not be brought as an offering to Adonai, then he is to set that animal before the kohen. ¹² The kohen is to evaluate it, whether it is good or bad. As the kohen values it, so it will be.