King David Receives Some Curses

I found it very interesting and eye-opening when I read about how King David received curses that were hurled at him in one situation.  He was fleeing Jerusalem because of his son Absalom was trying to take over the throne and threatened to kill him.  (2 Sam 15:13-14) Then Shimei pelted David and his officials with rocks and cursed him verbally. "Get out, you man of blood, you scoundrel! The LORD has repaid you for all the blood you sehd in the household of Saul, in whose place you have reigned.  The LORD has handed the kingdom over to your son Absalom. You have come to ruin because you are a man of blood."  When David's soldiers want to stop this man from cursing and hurling insults and rocks at David and the others, David tells him to leave him alone and let him curse.  David says, "If the LORD told him, 'Curse David', who can ask, 'Why do you do this?' And then David things maybe God will later blessing him for bearing with the insults at this time.   He says, "It may be that the LORD will see my distress and repay me with good for the cursing I am receiving today."  What do you think about this situation?   Do you think David was believing that God allowed Shimei to do this cursing so he realizes that there must be a purpose that will bless David in character-building?  Maybe he recalls the sin he committed with Bathsheba and the murder of her husband that he carried out and realizes that these curses may be part of God's necessary consequences.
I also find it comforting that David and his team reached their goal and were refreshed after they endured the insults.  So we can take that as an encouragement  when we experience similar trials.