Judges 9:57
And all the evil of the men of Shechem did God render upon their heads: and upon them came the curse of Jotham the son of Jerubbaal.
Cross-references
Judges 9:20 records Jotham's curse against Shechem and Abimelech, which is fulfilled when God returns their evil in verse 57.
Judges 9:45 describes Abimelech's destruction of Shechem, the very event that fulfills God's repayment of the men of Shechem's evil in verse 57.
1 Kings 2:32 explicitly says the Lord will bring back Joab's blood on his own head—mirroring the same 'on his head' retribution formula here.
2 Samuel 3:29 records David's curse on Joab's house—a parallel pronouncement of divine retribution, though not a fulfillment narrative.
2 Samuel 16:8 has Shimei cursing David with 'blood on your head'—similar language of retribution, but applied to David, not Abimelech.
In Jeremiah 51:35, the cry for vengeance against Babylon echoes the retribution theme here — violence repaid on the perpetrators.