2 Samuel 3:28 in the King James Version
And afterward when David heard it, he said, I and my kingdom are guiltless before the LORD for ever from the blood of Abner the son of Ner:
Context
27 When Abner had returned to Hebron, Joab took him aside into the middle of the gate to speak with him quietly, and struck him there in the body, so that he died for the blood of Asahel his brother.
28 Afterward, when David heard it, he said, “I and my kingdom are guiltless before the LORD forever of the blood of Abner the son of Ner.
29 Let it fall on the head of Joab and on all his father’s house. Let there not fail from the house of Joab one who has a discharge, or who is a leper, or who leans on a staff, or who falls by the sword, or who lacks bread.”