2 Samuel 16:10-13

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?’ ” Then David said to Abishai and to all his servants, “Look, my son [Absalom] who came from my own body, is seeking my life; how much more [reason] now [does] this Benjamite [have to curse me]? Let him alone and let him curse, for [it could be that] the LORD has told him [to do it]. Perhaps the LORD will look on the wrong done to me [by Shimei, if he is acting on his own]; and [in that case perhaps] the Lord will this day return good to me in place of his cursing.” So David and his men went on the road; and Shimei went along on the hillside close beside David and cursed as he went and threw stones and dust at him.