Judges 4:16
But Barak pursued after the chariots, and after the host, unto Harosheth of the Gentiles: and all the host of Sisera fell upon the edge of the sword; and there was not a man left.
Cross-reference
Judges 4:2
Historical context
Judges 4:2 sets up Sisera's army at Harosheth-hagoyim — the same army that is completely destroyed in this verse.
Leviticus 26:7
Prophetic fulfillment
Leviticus 26:7 promises that enemies will fall by the sword when Israel obeys — exactly fulfilled as Barak pursues and destroys Sisera's army here.
Leviticus 26:8
Prophetic fulfillment
Leviticus 26:8 promises a few chasing many — this total destruction of Sisera's army mirrors that covenant blessing.
Isaiah 43:17
Parallel
Isaiah 43:17 describes God bringing out chariot and army to extinguish them — exactly what God does through Barak here.