1 Chronicles 19:1-3

Some time after this Nahash king of the Ammonites died and his son succeeded him as king. David said, “I’d like to show some kindness to Hanun son of Nahash—treat him as well and as kindly as his father treated me.” So David sent condolences about his father’s death. But when David’s servants arrived in Ammonite country and came to Hanun to bring condolences, the Ammonite leaders warned Hanun, “Do you for a minute suppose that David is honoring your father by sending you comforters? Don’t you know that he’s sent these men to scout out the city and size it up so that he can capture it?”