Genesis 23:16
16 Abraham listened to Ephron, and Abraham jweighed out for Ephron the silver that he had named in the hearing of the Hittites, four hundred shekels of silver, according to the weights current among the merchants.
Genesis 24:22
22 When the camels had finished drinking, the man took a gold ring weighing a half shekel,1 and two bracelets for her arms weighing ten gold shekels,
