Exodus 34:19-21

Modern English Version

¹⁹ Every firstborn of the womb belongs to Me, and every firstborn male among your livestock, whether ox or sheep. ²⁰ But you must redeem with a lamb the firstborn of a donkey, and if you fail to redeem him, then you must break his neck. You must redeem all the firstborn of your sons.

No one may appear before Me empty-handed.

²¹ You shall work six days, but on the seventh day you must rest. Even at the time of plowing and harvest you must rest.