Arcana Coelestia # 2964
2964. And Abraham weighed to Ephron the silver. That this signifies redemption, is evident from the signification of “weighing silver,” as being to purchase, and in the spiritual sense to redeem. The “silver” here is the same as the “four hundred shekels,” by which is signified the price of redemption (as was shown above, n. 2959).
Exodus 30:12-13
12
"When you take a census of the children of Israel, according to those who are numbered among them, then each man shall give a ransom for his soul to Yahweh, when you number them; that there be no plague among them when you number them.
13
They shall give this, everyone who passes over to those who are numbered, half a shekel after the shekel of the sanctuary; (the shekel is twenty gerahs;) half a shekel for an offering to Yahweh.