2 Samuel 3:27

3:27 When Abner returned to Hebron, Joab took him aside at the gate as if to speak privately with him. Joab then stabbed him ¹  in the abdomen and killed him, avenging the shed blood of his brother Asahel. ² 

2 Samuel 11:13-15

11:13 Then David summoned him. He ate and drank with him, and got him drunk. But in the evening he went out to sleep on his bed with the servants of his lord; he did not go down to his own house.

11:14 In the morning David wrote a letter to Joab and sent it with Uriah. 11:15 In the letter he wrote: “Station Uriah in the thick of the battle and then withdraw from him so he will be cut down and killed.”

2 Samuel 20:9

20:9 Joab said to Amasa, “How are you, my brother?” With his right hand Joab took hold of Amasa’s beard as if to greet him with a kiss.

Mazmur 55:21

55:21 His words are as smooth as butter, ³ 

but he harbors animosity in his heart. ⁴ 

His words seem softer than oil,

but they are really like sharp swords. ⁵ 

[3:27]  ¹ tn Heb “and he struck him down there [in] the stomach.”

[3:27]  ² tn Heb “and he [i.e., Abner] died on account of the blood of Asahel his [i.e., Joab’s] brother.”

[55:21]  ³ tn Heb “the butter-like [words] of his mouth are smooth.” The noun מַחְמָאֹת (makhma’ot, “butter-like [words]”) occurs only here. Many prefer to emend the form to מֵחֶמְאָה (mekhem’ah, from [i.e., “than”] butter”), cf. NEB, NRSV “smoother than butter.” However, in this case “his mouth” does not agree in number with the plural verb חָלְקוּ (kholqu, “they are smooth”). Therefore some further propose an emendation of פִּיו (piv, “his mouth”) to פָּנָיו (panayv, “his face”). In any case, the point seems to that the psalmist’s former friend spoke kindly to him and gave the outward indications of friendship.

[55:21]  ⁴ tn Heb “and war [is in] his heart.”

[55:21]  ⁵ tn Heb “his words are softer than oil, but they are drawn swords.”