Judges 3:16 introduces the double-edged dagger Ehud made and concealed. This cross-reference provides the weapon's origin, making the assassination in v21 understandable.

Judges 4:21 has Jael killing Sisera with a tent peg through the temple. Both are surprising assassinations of enemy leaders by unconventional means.

In Numbers 25:7, Phinehas takes a javelin to execute judgment, paralleling Ehud's violent act with a dagger — both instruments of divine justice.

2 Samuel 20:10 shows Joab stabbing Amasa in the belly, spilling his bowels. Like Ehud, the blow is treacherous and to the abdomen—a close parallel.

Numbers 25:8 records Phinehas thrusting a javelin through the belly of Zimri and Cozbi, mirroring Ehud's abdominal strike. Both are zealous acts of judgment.

1 Samuel 15:33 describes Samuel hewing Agag in pieces—like Ehud, Samuel executes a foreign king in divine judgment. Both are acts of holy war.