Leviticus 27:29

27:29 Any human being who is permanently dedicated must not be ransomed; such a person must be put to death.

Leviticus 19:20

Lying with a Slave Woman

19:20 “‘When a man has sexual intercourse with a woman, although she is a slave woman designated for another man and she has not yet been ransomed, or freedom has not been granted to her, there will be an obligation to pay compensation. They must not be put to death, because she was not free.

Leviticus 27:27

27:27 If, however, it is among the unclean animals, he may ransom it according to its conversion value and must add one fifth to it, but if it is not redeemed it must be sold according to its conversion value.