It may be that the Lord will look upon my misery and restore to me his covenant blessing instead of his curse today

 2 Samuel 16:1-14

When David had gone a short distance beyond the summit, there was Ziba, the steward of Mephibosheth, waiting to meet him. He had a string of donkeys saddled and loaded with two hundred loaves of bread, a hundred cakes of raisins, a hundred cakes of figs and a skin of wine.

Then the king said to Ziba, “All that belonged to Mephibosheth is now yours.”

As he cursed, Shimei said, “Get out, get out, you murderer, you scoundrel! The Lord has repaid you for all the blood you shed in the household of Saul, in whose place you have reigned. The Lord has given the kingdom into the hands of your son Absalom. You have come to ruin because you are a murderer!

David then said to Abishai and all his officials, “My son, my own flesh and blood, is trying to kill me. How much more, then, this Benjamite! Leave him alone; let him curse, for the Lord has told him to. It may be that the Lord will look upon my misery and restore to me his covenant blessing instead of his curse today.”

Why?

Ziba came to support David, and Shimei came to curse David. David met the most difficulty in his life of his sins against the Lord.

How?

David accepted what the Lord arranged for him, no matter what happened David put his hope in the Lord. This is the real faith in the Lord.