Judges 3:14-16

So the children of Israel served Eglon the king of Moab eighteen years. But when the children of Israel cried unto the LORD, the LORD raised them up a deliverer, Ehud the son of Gera, a Benjamite, a man lefthanded: and by him the children of Israel sent a present unto Eglon the king of Moab. But Ehud made him a dagger which had two edges, of a cubit length; and he did gird it under his raiment upon his right thigh.