Judges 3:19-20

19But Ehud himself turned back from the sculptured stones at Gilgal, [and he returned to Eglon] and said [to him], “I have a secret message for you, O king.” Eglon said “Keep silence.” And all who attended him left him.

20Ehud came to him as he was sitting alone in his [private] cool upper chamber, and Ehud said, “I have a message from God for you.” And the king got up from his seat.