1 Samuel 6:9, 19-20

and watch. If it goes up on the way to its own land, to Beth-shemesh, then it is he who has done us this great harm, but if not, then we shall know that it is not his hand that struck us; it happened to us by coincidence.”

And he struck some of the men of Beth-shemesh, because they looked upon the ark of the LORD. He struck seventy men of them, and the people mourned because the LORD had struck the people with a great blow. Then the men of Beth-shemesh said, “Who is able to stand before the LORD, this holy God? And to whom shall he go up away from us?”