Thematic Bible: Of the firstborn

And the ransom of the two hundred and seventy-three of the firstborn of the {Israelites} who are excessive over the Levites, you will receive five shekels a person, in the sanctuary shekel; you will collect twenty gerahs [per] shekel. You will give the money to Aaron, and to his sons the ransom of the ones who are excessive among them." read more.
And Moses received the money of the redemption from the ones who were excessive from those redeemed of the Levites. From the firstborn of the {Israelites} he took the money, one thousand three hundred and sixty-five shekels, in the sanctuary shekel. And Moses gave the money of the ransom to Aaron and to his sons according to the {word} of Yahweh just as Yahweh commanded Moses.

All [the] first offspring of a womb of any creature that they offer to Yahweh, whether human or animal, will be yours; you will surely redeem the firstborn of the human and the unclean firstborn of the animal. As to their price of redemption, from {a one-month-old} you will redeem them according to your proper value, five shekels of silver according to the shekel of the sanctuary, which [is] twenty gerah.