2 Samuel 10:2-4

2David said, “I will express my loyalty to Hanun son of Nahash just as his father was loyal to me.” So David sent his servants with a message expressing sympathy over his father’s death. When David’s servants entered the land of the Ammonites,

3the Ammonite officials said to their lord Hanun, “Do you really think David is trying to honor your father by sending these messengers to express his sympathy? No, David has sent his servants to you to get information about the city and spy on it so they can overthrow it!”

4So Hanun seized David’s servants and shaved off half of each one’s beard. He cut the lower part of their robes off so that their buttocks were exposed, and then sent them away.