2 Samuel 3:29
Let it rest on the head of Joab, and on all his father’s house; and let there not fail from the house of Joab one that hath an issue, or that is a leper, or that leaneth on a staff, or that falleth on the sword, or that lacketh bread.
Cross-references
In 2 Samuel 1:16, David tells the Amalekite 'your blood on your head' — same formula as his curse on Joab's house.
In Leviticus 13:44-46, a leper must live alone outside the camp — matching David's curse that Joab's house never lack a leprous outcast.
In 1 Kings 2:31-34, Solomon fulfills David's curse by executing Joab for his innocent blood — the delayed divine justice arrives.
In 1 Kings 2:33, Solomon's execution fulfills David's curse that Joab's blood would return on his head and house.
In 1 Samuel 2:32-36, God curses Eli's house with perpetual weakness and early death — the same kind of generational curse David invokes on Joab.
In 2 Kings 5:27, Naaman's leprosy clings to Gehazi and his descendants forever — a parallel curse of perpetual affliction on a household.
In Psalm 109:8-19, the psalmist curses his enemy's family with poverty, orphanhood, and wandering — the same catalogue of generational curses David uses.
In Judges 9:57, the evil of Abimelech's supporters is repaid — mirroring David's curse that Joab's house suffer for his bloodshed.