2 Samuel 3:28-30 Common English Bible (CEB)
28 When David heard about this later, he said, “I and my kingdom are forever innocent before the Lord concerning the shedding of the blood of Abner, Ner’s son. 29 May it fall upon the head of Joab and his entire family tree! May Joab’s family never be without someone with a discharge or a skin disease,[a] someone who uses a crutch,[b] someone who dies by the sword, or someone who is hungry!”
30 So that is how Joab and his brother Abishai murdered Abner, because he killed their brother Asahel in the battle at Gibeon.