2 Samuel 16:10

What have I to do with you -What have we in common? leave me alone." The phrase is used to repel an unwelcome suggestion, and repudiate participation in the thoughts and feelings of another. Cp. ch. 2 Samuel 19:22; John 2:4.

ye sons of Zeruiah Joab probably seconded Abishai's request. For David's abhorrence of his nephews" ferocity, see ch. 2 Samuel 3:39.

so let him curse, &c. This is the rendering of the traditional reading (Qrî). The written text (Kthîbh) may be rendered, when he curseth, and when the Lord, &c., who then shall say, &c.: or, for he curseth because the Lord, &c.