The curse of David proves that Joab was not justified as a blood-avenger or goel in taking Abner’s life (2 Samuel 3:27).

Let it rest on the head of Joab. —The strong curse here pronounced by David shows that Joab’s act could not be justified …

Let it rest on the head of Joab
That is, the blood of Abner, who was the shedder of it; let the guilt of it be charg…

Judgments are prepared for such scorners as Abner; but Joab, in what he did, acted wickedly. David laid Abner's murder deeply to heart and in many …