1 Chronicles 19:1-3

When Nahash king of the Ammonites died, his son became king after him. David said, “Nahash was loyal to me, so I will be loyal to his son Hanun.” So David sent messengers to comfort Hanun about his father’s death. David’s officers went to the land of the Ammonites to comfort Hanun. But the Ammonite leaders said to Hanun, “Do you think David wants to honor your father by sending men to comfort you? No! David sent them to study the land and capture it and spy it out.”