Judges 3:25 (KJV)

Then Ehud went forth through the porch, and shut the doors of the parlour upon him, and locked them.

When he was gone out, his servants came; and when they saw that, behold, the doors of the parlour were locked, they said, Surely he covereth his feet in his summer chamber.

And they tarried till they were ashamed: and, behold, he opened not the doors of the parlour; therefore they took a key, and opened them: and, behold, their lord was fallen down dead on the earth.

And Ehud escaped while they tarried, and passed beyond the quarries, and escaped unto Seirath.

And it came to pass, when he was come, that he blew a trumpet in the mountain of Ephraim, and the children of Israel went down with him from the mount, and he before them.