1 Kings 2:9 in the King James Version
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.
Context
8 “Behold, there is with you Shimei the son of Gera, the Benjamite of Bahurim, who cursed me with a grievous curse in the day when I went to Mahanaim; but he came down to meet me at the Jordan, and I swore to him by the LORD, saying, ‘I will not put you to death with the sword.’
9 Now therefore don’t hold him guiltless, for you are a wise man; and you will know what you ought to do to him, and you shall bring his gray head down to Sheol with blood.”
10 David slept with his fathers, and was buried in David’s city.