Gerah: Also a Coin Equivalent to About Three Cents American Money and Three Half-Pence English Money
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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.
Leviticus 27:25
Every valuation will be according to the sanctuary shekel, twenty gerahs to the shekel.
Numbers 3:47
you are to collect five shekels for each one, according to the sanctuary shekel of twenty gerahs.