'Guilt offering' in the Bible

They replied, “If you send the ark of Israel’s God away, you must not send it without an offering. You must send back a restitution offering to Him, and you will be healed. Then the reason His hand hasn’t been removed from you will be revealed.”

They asked, “What restitution offering should we send back to Him?”And they answered, “Five gold tumors and five gold mice corresponding to the number of Philistine rulers, since there was one plague for both you and your rulers.

Take the ark of the Lord, place it on the cart, and put the gold objects that you’re sending Him as a restitution offering in a box beside the ark. Send it off and let it go its way.

As a restitution offering to the Lord, the Philistines had sent back one gold tumor for each city: Ashdod, Gaza, Ashkelon, Gath, and Ekron.