6 David said to Abishai, "Now Sheba son of Bichri will do us more harm than Absalom; take your lord's servants and pursue him, or he will find fortified cities for himself, and escape from us."

Matthew Henry's Commentary on 2 Samuel 20:6

Commentary on 2 Samuel 20:4-13

(Read 2 Samuel 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.