Leviticus 27:9-11

Tree of Life Version

⁹ “Now if it is an animal that may be brought as an offering to Adonai, anything that one gives to Adonai will be holy. 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.