1 Samuel 6:3

6:3 They replied, “If you are going to send the ark of¹ the God of Israel back, don’t send it away empty. Be sure to return it with a guilt offering. Then you will be healed, and you will understand why his hand is not removed from you.”

1 Samuel 6:9

6:9 But keep an eye on it. If it should go up by the way of its own border to Beth Shemesh, then he has brought this great calamity on us. But if that is not the case, then we will know that it was not his hand that struck us; rather, it just happened to us by accident.”