He is not to replace it or exchange it, either good for bad, or bad for good. But if he does exchange one animal for another, then both it and the one for which it is exchanged will become holy.
“Moreover, cursed is a deceiver who has in his flock a male, but makes a vow and sacrifices something blemished to my Lord. For I am a great King,” says Adonai-Tzva’ot, “and My Name shall be revered among the nations.”