To touch the beard of another was an insult, unless done as an act of friendship and a token of respect. Joab therefore showed the base treachery of his heart by coming to Amasa in the manner of a friend, thus entirely concealing his murderous intent. He inquired after his health, gently touched his beard as if to give a kiss, and then suddenly grasped it with his right hand and quickly stabbed the unsuspecting Amen with the unnoticed sword which he held in his left.