Shekel: A Weight, Equal to Twenty Gerahs
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Exodus 30:13
Everyone who crosses over to those counted must pay a half shekel, according to the sanctuary shekel, which weighs twenty gerahs. This half shekel is an offering to the LORD.
Numbers 3:47
you are to collect five shekels for each one, according to the sanctuary shekel of twenty gerahs.
Ezekiel 45:12
The shekel will consist of twenty gerahs. Twenty shekels plus twenty-five shekels plus fifteen shekels will equal one mina.