Judges 3:14-16

And the children of Israel served Eglon the king of Moab eighteen years. But when the children of Israel cried unto Jehovah, Jehovah raised them up a saviour, Ehud the son of Gera, the Benjamite, a man left-handed. And the children of Israel sent tribute by him unto Eglon the king of Moab. And Ehud made him a sword which had two edges, a cubit in length; and he girded it under his raiment upon his right thigh.