20 The firstling of a donkey you are to redeem with a sheep. But if you do not redeem it, then you must break its neck. You are to redeem every firstborn of your sons.+ No one may appear before me empty-handed.

27 If it is among the unclean animals and he redeems it according to the estimated value, he should give a fifth of it in addition to it.+ But if it is not bought back, it will be sold according to the estimated value.