Exodus 30:16
And thou shalt take the atonement money of the children of Israel, and shalt appoint it for the service of the tabernacle of the congregation; that it may be a memorial unto the children of Israel before the Lord, to make an atonement for your souls.
Cross-references
Exodus 38:25-31 details the total silver collected and its use for sanctuary sockets — the direct fulfillment of Exodus 30:16's instruction.
Exodus 38:26 records the actual collection of the half-shekel census tax commanded here, providing the exact count and silver amount.
Nehemiah 10:32 revives the temple tax as a third shekel, applying the atonement money principle from Exodus 30:16 for post-exilic worship.
Numbers 31:54 states the gold was brought into the tent of meeting 'as a memorial for the people of Israel before the LORD,' directly paralleling the memorial function of the atonement money.
Numbers 31:50 describes the gold offering from the Midianite campaign 'to make atonement for ourselves before the LORD,' echoing the atonement function of the census tax.