and give the money, the ransom (redemption price) of those who outnumber the Levites to Aaron and to his sons.”
you shall take five shekels apiece, per head, you shall take them in terms of the sanctuary shekel (the shekel is twenty gerahs),
So Moses took the ransom (redemption) money from those who were in excess, beyond those ransomed by the Levites;
Then Moses gave the ransom money to Aaron and to his sons at the command of the Lord, just as the Lord had commanded Moses.