Leviticus

This they shall give, every one that passeth among them that are numbered, half a shekel after the shekel of the sanctuary: (a shekel is twenty gerahs:) an half shekel shall be the offering of the Lord.

And those that are to be redeemed from a month old shalt thou redeem, according to thine estimation, for the money of five shekels, after the shekel of the sanctuary, which is twenty gerahs.

And all thy estimations shall be according to the shekel of the sanctuary: twenty gerahs shall be the shekel.

Thou shalt even take five shekels apiece by the poll, after the shekel of the sanctuary shalt thou take them: (the shekel is twenty gerahs:)

And Jehoash said to the priests, All the money of the dedicated things that is brought into the house of the Lord, even the money of every one that passeth the account, the money that every man is set at, and all the money that cometh into any man’s heart to bring into the house of the Lord,