'Cursing' in the Bible

Later on, as King David approached Bahurim, Gera's son Shimei, who was related to the family of Saul's household, went out to meet David, cursing continually as he approached.

Shimei said while cursing him, "Go out, go out, [you] {man of bloodshed}, [you] {man of wickedness}.

At this point, Zeruiah's son Abishai asked the king, "Why should this dead dog be cursing your majesty the king? May I have permission to go over and cut off his head?"

But the king said, “What business is this of yours, O sons of Zeruiah? If Shimei is cursing because the Lord said to him, ‘Curse David,’ then who should say, ‘Why have you done so?’”

So David ordered Abishai and all of his staff: "Look! My own son wants to kill me! How much more now is this descendant of Benjamin? Leave him alone and let him go on cursing, because the LORD has ordered him to do this.

It may be that the LORD will look on mine affliction, and that the LORD will requite me good for his cursing this day.

So David and his entourage went on their way, and Shimei walked along the hillside with him, cursing, throwing rocks, and tossing dirt at David as they went along.

But Abishai, the son of Zeruiah, said, Is not death the right fate for Shimei, because he has been cursing the one marked by the holy oil?