But when the children of Israel cried to Yahweh, Yahweh raised them up a savior, Ehud the son of Gera, the Benjamite, a man left-handed. The children of Israel sent tribute by him to Eglon the king of Moab.
That Ehud's murder of Eglon was premeditated and most skillfully planned is evident.  The plan began with the making of a sword with no cross-member at the handle and with the concealment of such a deadly weapon upon his person.