He that favoreth Joab ... - This speech, addressed to Amasa’s followers as well as Joab’s, shows very distinctly that the rivalry between Joab and Amasa, and David’s purpose to make Amasa captain in Joab’s room, were well known; and shows also the real reason why Joab killed Amasa. What is added, “and he that is for David,” was intended to identify Joab’s cause with David’s, and also to insinuate that Amasa had not been loyal to David (2 Samuel 20:5 note).
Related Commentaries of 2 Samuel 20:11
2 Samuel 20:11
11 And one of Joab's men stood by him, and said, He that favoureth Joab, and he that is for David, let him go after Joab.