1 Samuel 6:10-11

10So the Philistines did what the priests and magicians told them. They took two cows that had just given birth to calves. They tied the cows to a cart. They took away their calves and they kept them at home.

11They put the Lord's Covenant Box on the cart. They put the other box beside it on the cart. That box contained the gold images of the mice and the tumours.