2 Samuel 20:10-13

10But Amasa did not observe the sword that was in Joab’s hand. aSo Joab struck him with it bin the stomach and spilled his entrails to the ground without striking a second blow, and he died.

Then Joab and Abishai his brother pursued Sheba the son of Bichri.
11And one of Joab’s young men took his stand by Amasa and said, “Whoever favors Joab, and whoever is for David, let him follow Joab.” 12And Amasa lay wallowing in his blood in the highway. And anyone who came by, seeing him, stopped. And when the man saw that all the people stopped, he carried Amasa out of the highway into the field and threw a garment over him. 13When he was taken out of the highway, all the people went on after Joab to pursue Sheba the son of Bichri.

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