'Shekel' in the Bible

"When a person {displays infidelity} and he sins in an unintentional wrong {in any of} Yahweh's holy things, then he shall bring his guilt offering to Yahweh: a ram without defect from the flock as a guilt offering by your valuation [in] silver shekels according to the sanctuary shekel.

if your proper value is [for] a male from {twenty years of age} up to {sixty years of age}, then your proper value shall be fifty shekels [of] money according to the sanctuary's shekel.

And every proper value of yours shall be in the sanctuary's shekel--the shekel shall be twenty gerahs.