2 Samuel 20:7-9

7 With him went Yo’av’s men, the K’reti, the P’leti and all the experienced soldiers; they left Yerushalayim in pursuit of Sheva the son of Bikhri.

8 On arrival at the big rock in Giv‘on, ‘Amasa came to meet them. Yo’av was wearing his battle clothes, over which he had girded a belt with a sheathed sword; but as he came forward it fell out.

9 Yo’av said to ‘Amasa, “Is it going well with you, my brother? Then, with his right hand, Yo’av took ‘Amasa by the beard to kiss him.