1 Chronicles 19:1-3

In the course of time, Nahash king of the Ammonites died, and his son succeeded him as king. David thought, “I will show kindness to Hanun son of Nahash, because his father showed kindness to me.” So David sent a delegation to express his sympathy to Hanun concerning his father. When David’s envoys came to Hanun in the land of the Ammonites to express sympathy to him, the Ammonite commanders said to Hanun, “Do you think David is honoring your father by sending envoys to you to express sympathy? Haven’t his envoys come to you only to explore and spy out the country and overthrow it?”