2 Samuel 20:9-11

New Catholic Bible

⁹ Then Joab said to Amasa: “I trust that you are well, my brother.” Having said that, Joab grasped Amasa’s beard with his right hand as if to kiss him.

¹⁰ Amasa was not on his guard and failed to notice the sword in Joab’s left hand. Joab struck him with it in the belly so that his entrails poured forth to the ground. He did not find it necessary to strike a second blow, since Amasa had died instantaneously. Then Joab set forth with his brother Abishai in pursuit of Sheba, son of Bichri.

¹¹ One of Joab’s men stood on guard next to the body of Amasa, and he shouted: “Follow Joab, all those of you who favor Joab and support David!”