וַיִּרְאוּ֙ בְּנֵ֣י עַמּ֔וֹן כִּ֥י הִֽתְבָּאֲשׁ֖וּ עִם־דָּוִ֑יד וַיִּשְׁלַ֣ח חָ֠נוּן וּבְנֵ֨י עַמּ֜וֹן אֶ֣לֶף כִּכַּר־כֶּ֗סֶף לִשְׂכֹּ֣ר לָ֠הֶם מִן־אֲרַ֨ם נַהֲרַ֜יִם וּמִן־אֲרַ֤ם מַעֲכָה֙ וּמִצּוֹבָ֔ה רֶ֖כֶב וּפָרָשִֽׁים׃
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 Aram-naharaim, and out of Aram-maacah, and out of Zobah.
Read midrashic interpretation of I Chronicles 19:6: and classical rabbinic exegesis.