Exodus 34:18-20

Modern English Version

¹⁸ You shall keep the Feast of Unleavened Bread. For seven days you are to eat unleavened bread, as I commanded you, in the month of Aviv, for in the month of Aviv you came out of Egypt.

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.