Absalom had put Amasa in command of the army in the place of Joab. Amasa was the son of Jether the Ishmaelite; his mother was Abigail, the daughter of Nahash and the sister of Joab's mother Zeruiah.)
“Is the young man Absalom all right?” the king asked. Ahimaaz answered, “Sir, when your officer Joab sent me, I saw a great commotion, but I couldn't tell what it was.”
When Abner arrived in Hebron, Joab took him aside at the gate, as though he wanted to speak privately with him, and there he stabbed him in the stomach. And so Abner was murdered because he had killed Joab's brother Asahel.
The Lord will punish Joab for those murders, which he committed without my father David's knowledge. Joab killed two innocent men who were better men than he: Abner, commander of the army of Israel, and Amasa, commander of the army of Judah.
There is not an honest person left in the land, no one loyal to God. Everyone is waiting for a chance to commit murder. Everyone hunts down their own people.
Then the Israelites cried out to the Lord, and he sent someone to free them. This was Ehud, a left-handed man, who was the son of Gera, from the tribe of Benjamin. The people of Israel sent Ehud to King Eglon of Moab with gifts for him.