Exodus 30:12 ASV

¹⁰  And Aaron shall make atonement upon the horns of it once in the year; with the blood of the sin-offering of atonement once in the year shall he make atonement for it throughout your generations: it is most holy unto Jehovah.

¹¹  And Jehovah spake unto Moses, saying,

¹²  When thou takest the sum of the children of Israel, according to those that are numbered of them, then shall they give every man a ransom for his soul unto Jehovah, when thou numberest them; that there be no plague among them, when thou numberest them.

¹³  This they shall give, every one that passeth over unto them that are numbered, half a shekel after the shekel of the sanctuary; (the shekel is twenty gerahs;) half a shekel for an offering to Jehovah.

¹⁴  Every one that passeth over unto them that are numbered, from twenty years old and upward, shall give the offering of Jehovah.