2 Samuel 20:10-14

But Amasa was not on guard against the sword which was in Joab’s hand, so he struck him in the belly with it and spilled out his intestines on the ground, and did not strike him again, and he died. Then Joab and his brother Abishai pursued Sheba the son of Bichri.

Now one of Joab’s young men stood by him and said, “Whoever favors Joab and whoever is for David, follow Joab!”

But Amasa was wallowing in his own blood in the middle of the road. And when the man saw that all the people stood still, he removed Amasa from the road to the field and threw a garment over him when he saw that everyone who came by him stood still. Revolt Put Down

As soon as he was removed from the road, all the men went on after Joab to pursue Sheba the son of Bichri.

Now he went on through all the tribes of Israel to Abel, that is, Beth-maacah, and all the Berites; and they assembled and went after him as well.