NET
20 Now the firstling of a donkey you may redeem with a lamb, but if you do not redeem it, then break its neck. You must redeem all the firstborn of your sons. “No one will appear before me empty-handed.
Darby
20 But the firstling of an ass thou shalt ransom with a lamb; and if thou ransom [it] not, then shalt thou break its neck. All the first-born of thy sons thou shalt ransom; and none shall appear before me empty.
KJV
20 But the firstling of an ass thou shalt redeem with a lamb: and if thou redeem [him] not, then shalt thou break his neck. All the firstborn of thy sons thou shalt redeem. And none shall appear before me empty.