And Joab said to Amasa,.... In a friendly manner, with all the air of pleasantry and good humour:

art thou in health, my brother? this looked like a friendly salutation to ask of his health, and wish him it, and a loving appellation to call him brother; though they were near of kin, sisters' children, and so own cousins; thus he addressed him, to cover his design:

and Joab took Amasa by the beard with his right hand to kiss him: as was usual for the eastern people to do when they addressed and saluted one another in an affectionate way, and as the Turks and Arabs do to this day, as travellers relate. Barthius (t) has collected passages from the Greek poets, which show it to be a custom, that when a man asked a favour of another, he caught hold of his beard with the right hand, and of his knee with the left; and in such a posture Joab might easily do what follows.

(t) Animadv. ad Claudian. de Raptu Proserp. l. 1. ver. 50. vid. Homer. Iliad. ver. 500, 501. Iliad. 8. ver. 371. & Alex. ab Alex. Genial. Dier. l. 2. c. 19.

Joab asked Amasa how he was, and laid hold of his bear with his right hand to kiss him. And as Amasa took no heed of the sword in Joab's hand, he smote him with it in the paunch (abdomen), and shed out his bowels upon the ground, "and repeated not (the stroke) to him" (cf. 1 Samuel 26:8). Laying hold of the beard to kiss is still customary among Arabs and Turks as a sign of friendly welcome (vid., Arvieux, Merkwrdige Nachrichten, iv. p. 182, and Harmar, Beobachtungen, ii. p. 61). The reason for this assassination was Joab's jealousy of Amasa. Joab and Abishai then followed Sheba.

And Joab said to Amasa, Art thou in health, my brother? And Joab took Amasa by the beard with the right hand to kiss him.

20:9 Beard - As the manner of ancient times was, when they saluted one another.

9. took Amasa by the beard with the right hand to kiss him-This act, common with two friends on meeting when one of them returns from a journey, indicates respect as well as kindliness, and the performance of it evinced the deep hypocrisy of Joab, who thereby put Amasa off his guard. No wonder, then, that while this act of friendly gratulation after long absence occupied Amasa's attention, he did not perceive the sword that was in Joab's left hand. The action of Joab was indeed a high compliment, but neither suspicious nor unusual and to this compliment, Amasa paying attention and no doubt returning it with suitable politeness, he could little expect the fatal event that Joab's perfidy produced.

20:4-13 Joab barbarously murdered Amasa. The more plot there is in a sin, the worse it is. Joab contentedly sacrificed the interest both of the king and the kingdom to his personal revenge. But one would wonder with what face a murderer could pursue a traitor; and how, under such a load of guilt, he had courage to enter upon danger: his conscience was seared.