2 Kings 6:8-12 NIV
Now the king of Aram was at war with Israel. After conferring with his officers, he said, “I will set up my camp in such and such a place.”
The man of God sent word to the king of Israel: “Beware of passing that place, because the Arameans are going down there.” So the king of Israel checked on the place indicated by the man of God. Time and again Elisha warned the king, so that he was on his guard in such places.
This enraged the king of Aram. He summoned his officers and demanded of them, “Tell me! Which of us is on the side of the king of Israel?”
“None of us, my lord the king,” said one of his officers, “but Elisha, the prophet who is in Israel, tells the king of Israel the very words you speak in your bedroom.”
NIV: New International Version