1 Chronicles 19:6-7

6The Ammonites realized that they had caused David to be very angry. So King Hanun and his people made an agreement with the people of Aram-Naharaim, Aram-Maacah and Zobah. The Ammonites sent them about 34,000 kilograms of silver to get their help with chariots and their drivers.

7They had 32,000 chariots to use in the battle. They also received help from the king of Maakah and his army. All these men made their camp near Medeba. At the same time King Hanun had brought together the Ammonite soldiers from their towns. They were all ready to fight.