Exodus 30:13-15

Young's Literal Translation

¹³ `This they do give, every one passing over unto those numbered, half a shekel, by the shekel of the sanctuary (the shekel [is] twenty gerahs); half a shekel [is] the heave-offering to Jehovah;

¹⁴ every one passing over unto those numbered, from a son of twenty years and upwards, doth give the heave-offering of Jehovah;

¹⁵ the rich doth not multiply, and the poor doth not diminish from the half-shekel, to give the heave-offering of Jehovah, to make atonement for your souls.