1 Kings 2:9
Now therefore hold him not guiltless: for thou art a wise man, and knowest what thou oughtest to do unto him; but his hoar head bring thou down to the grave with blood.
Cross-reference
In 1 Kings 2:6, David uses the same 'gray head to Sheol' idiom about Joab, showing a pattern in his deathbed commands.
In 1 Kings 2:36, Solomon restricts Shimei to Jerusalem — the first step in carrying out David's command.
Exodus 22:28 explicitly forbids cursing a ruler — Shimei cursed King David, so David’s command to execute judgment directly enforces this law.
In 2 Samuel 16:5, Shimei curses David — this background explains why David commands his death here.
In 2 Samuel 19:23, David swore Shimei would not die — directly contradicting his later command to kill him.
In Genesis 42:38, Jacob uses the identical 'gray hairs to Sheol' idiom in grief — same phrase, opposite emotion.
In Genesis 44:31, Judah repeats the 'gray hairs to Sheol' idiom about Jacob, reinforcing the verbal echo.