Genesis 20:16

16To Sarah he said, “Behold, I have given ayour brother a thousand pieces of silver. It is ba sign of your innocence in the eyes of all
Hebrew  It is a covering of eyes for all
who are with you, and before everyone you are vindicated.”

Genesis 23:15

15“My lord, listen to me: a piece of land worth four hundred dshekels
A  shekel was about 2/5 ounce or 11 grams
of silver, what is that between you and me? Bury your dead.”
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