2 Kings 6:8-12

8Now the king of Syria was making war against Israel; and he consulted with his servants, saying, “My camp will be in such and such a place.”

9And the man of God sent to the king of Israel, saying, “Beware that you do not pass this place, for the Syrians are coming down there.”

10Then the king of Israel sent someone to the place of which the man of God had told him. Thus he warned him, and he was watchful there, not just once or twice.

11Therefore the heart of the king of Syria was greatly troubled by this thing; and he called his servants and said to them, “Will you not show me which of us is for the king of Israel?”

12And one of his servants said, “None, my lord, O king; but Elisha, the prophet who is in Israel, tells the king of Israel the words that you speak in your bedroom.”