2 Samuel 19:21

19:21 Abishai son of Zeruiah replied, “For this should not Shimei be put to death? After all, he cursed the Lord’s anointed!”

2 Samuel 12:5

12:5 Then David became very angry at this man. He said to Nathan, “As surely as the Lord lives, the man who did this deserves to die! ¹ 

[12:5]  ¹ tn Heb “the man doing this [is] a son of death.” See 1 Sam 20:31 for another use of this expression, which must mean “he is as good as dead” or “he deserves to die,” as 1 Sam 20:32 makes clear.