Exodus

⁹Ye shall offer no strange incense thereon, nor burnt offering, nor meal offering; and ye shall pour no drink offering thereon. ¹⁰And 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 the Lord. ¹¹And the Lord spake unto Moses, saying, ¹²When 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 the Lord, when thou numberest them; that there be no plague among them, when thou numberest them. ¹³This 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 the Lord. ¹⁴Every one that passeth over unto them that are numbered, from twenty years old and upward, shall give the offering of the Lord. ¹⁵The rich shall not give more, and the poor shall not give less, than the half shekel, when they give the offering of the Lord, to make atonement for your souls.