Exodus 30:12-14

Young's Literal Translation

¹² `When thou takest up the sum of the sons of Israel for their numbers, then they have given each an atonement [for] his soul to Jehovah in their being numbered, and there is no plague among them in their being numbered.

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;