20 And the firstling of an ass you are to redeem with a sheep.+ But if you will not redeem it, then you must break its neck. Every firstborn of your sons you are to redeem.+ And they must not appear before me empty-handed.+

27 And if it is among the unclean beasts+ and he must redeem it according to the estimated value, he must then give a fifth of it in addition to it.+ But if it should not be bought back, it must then be sold according to the estimated value.