John Gills Exposition of the Bible Commentary - 2 Samuel 3:31
And David said to Joab, and to all the people that were with him ,.... To his whole court, Joab being present: for he did not flee, nor was he laid hold on in order to be brought to justice; which shows how great his power was, and that he was too hard for David, as in 2 Samuel 3:39 ; however this he did, he enjoined his whole court, and Joab also, to express public mourning on this account: rend your clothes and gird you with sackcloth ; which were expressions of mourning used on... read more
Matthew Henry's Complete Commentary - 2 Samuel 3:22-39
We have here an account of the murder of Abner by Joab, and David's deep resentment of it. I. Joab very insolently fell foul upon David for treating with Abner. He happened to be abroad upon service when Abner was with David, pursuing a troop, either of Philistines or of Saul's party; but, upon his return, he was informed that Abner was just gone (2 Sam. 3:22, 23), and that a great many kind things had passed between David and him. He had all the reason in the world to be satisfied of David's... read more