“Every firstborn of a donkey you shall redeem with a lamb, or if you will not redeem it you shall break its neck. Every firstborn of man among your sons you shall redeem. And when in time to come your son asks you, ‘What does this mean?’ you shall say to him, ‘By a strong hand the Lord brought us out of Egypt, from the house of slavery.”


- Exodus 13:13-14 ESV