And when the children of Ammon saw that they had made themselves odious to David, Hanun and the children of Ammon sent a thousand talents of silver to hire them chariots and horsemen out of Mesopotamia, and out of Syriamaachah, and out of Zobah. Chariots and horsemen out of Mesopotamia - These are not mentioned in the parallel place in Samuel; probably they did not arrive till the Ammonites and their other allies were defeated by the Israelites in the first battle.
Related Commentaries of 1 Chronicles 19:6
1 Chronicles 19:6
6 And when the children of Ammon saw that they had made themselves odiousb to David, Hanun and the children of Ammon sent a thousand talents of silver to hire them chariots and horsemen out of Mesopotamia, and out of Syriamaachah, and out of Zobah.