1 Samuel 14:41

Then Saul prayed to GOD, “O God of Israel, why haven’t you answered me today? Show me the truth. If the sin is in me or Jonathan, then, O GOD, give the sign Urim. But if the sin is in the army of Israel, give the sign Thummim.” The Urim sign turned up and pointed to Saul and Jonathan. That cleared the army.