1 Chronicles 19:2-8

2Then David said, “I will show kindness to Hanun the son of Nahash, because his father showed kindness to me.” So David sent messengers to console him concerning his father. And David’s servants came into the land of the sons of Ammon to Hanun to console him. 3But the commanders among the sons of Ammon said to Hanun, “1Do you think that David is honoring your father, in that he has sent comforters to you? Have his servants not come to you to search, to demolish, and to spy out the land?” 4So Hanun took David’s servants and shaved them, and cut off their robes in the middle as far as their buttocks, and sent them away. 5Then certain people went and told David about the men. And he sent messengers to meet them, because the men were very humiliated. And the king said, “Stay at Jericho until your beards grow back, then return.”

6When the sons of Ammon saw that they had made themselves repulsive to David, Hanun and the sons of Ammon sent 2a thousand talents of silver to hire for themselves chariots and horsemen from Mesopotamia, Aram-maacah, and 3Zobah. 7So they hired for themselves thirty-two thousand chariots, and the king of Maacah and his people, who came and camped opposite 4Medeba. And the sons of Ammon gathered together from their cities and came to the battle. 8When David heard about it, he sent Joab and all the army, the mighty men.