20:11 And one of Joab's men {h} stood by him, and said, He that favoureth Joab, and he that [is] for David, [let him go] after Joab.

(h) He stood by Amasa at Joab's appointment.

20:11 One - Left there on purpose to deliver the following message. Favoureth Joab - He that would have Joab to be general, rather than such a perfidious rebel as Amasa. For David - He that wisheth David good success against Sheba, and against all rebels.

20:4-13 Joab barbarously murdered Amasa. The more plot there is in a sin, the worse it is. Joab contentedly sacrificed the interest both of the king and the kingdom to his personal revenge. But one would wonder with what face a murderer could pursue a traitor; and how, under such a load of guilt, he had courage to enter upon danger: his conscience was seared.