'Redemption' in the Bible

And for the redemption of the 273 firstborn males of the Israelites who exceed the number of the Levites,

And give the money for the redemption of the excess number of them to Aaron and his sons."

So Moses took the redemption money from those who were in excess of those redeemed by the Levites.

Moses gave the redemption money to Aaron and his sons, according to the word of the Lord, as the Lord had commanded Moses.