When the Ammonites realized that they had become a stench to David, Hanun and the Ammonites sent a thousand talents of silver to hire for themselves chariots and horsemen from Aram-naharaim, Aram-maacah, and Zobah.
We may see here, 1. How the hearts of sinners that are marked for ruin are hardened to their destruction. The children of Ammon saw that they had made themselves odious to David (Ch1 19:6), and then it would have been their wisdom to desire conditions of peace, to humble themselves and offer any satisfaction for the injury they had done him, the rather because...
Commenting on 1 Chronicles 19:6-19
JOAB AND ABISHAI OVERCOME THE AMMONITES. (Ch1 19:6-15) when the children of Ammon saw that they had made themselves odious to David--One universal feeling of indignation was roused throughout Israel, and all classes supported the king in his determination to avenge this unprovoked insult on the Hebrew nation. Hanun . . . sent a thousand talents of silver--a sum equal to £342,100, to procure the services of foreign mercenaries.
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. (e) Which were five in all.