(1 Chronicles 19) Unjudged

And the princes of the people of Ammon said to Hanun, “Do you think that David really honors your father because he has sent comforters to you? Did his servants not come to you to search and to overthrow and to spy out the land?”  Therefore Hanun took David’s servants, shaved them, and cut off their garments in the middle, at their buttocks, and sent them away.

The Ammonites returned evil for kindness.  Such actions do not go unnoticed by the Almighty, and will not go unjudged.