2 Samuel 20:7-9

New International Version - UK

⁷ So Joab’s men and the Kerethites and Pelethites and all the mighty warriors went out under the command of Abishai. They marched out from Jerusalem to pursue Sheba son of Bikri.

⁸ While they were at the great rock in Gibeon, Amasa came to meet them. Joab was wearing his military tunic, and strapped over it at his waist was a belt with a dagger in its sheath. As he stepped forward, it dropped out of its sheath.

⁹ Joab said to Amasa, ‘How are you, my brother?’ Then Joab took Amasa by the beard with his right hand to kiss him.