1 Samuel 6:7-9

7“Now then, prepare one new cart and two milk cows that have never been yoked. Hitch the cows to the cart, but take their calves away and pen them up.

8Take the ark of the Lord, place it on the cart, and put the gold objects that you’re sending him as a guilt offering in a box beside the ark. Send it off and let it go its way.

9Then watch: If it goes up the road to its homeland toward Beth-shemesh, it is the Lord who has made this terrible trouble for us. However, if it doesn’t, we will know that it was not his hand that punished us — it was just something that happened to us by chance.”