וַיָּ֤שֶׂם בֶּֽאֱדוֹם֙ נְצִיבִ֔ים וַיִּהְי֥וּ כָל־אֱד֖וֹם עֲבָדִ֣ים לְדָוִ֑יד וַיּ֤וֹשַׁע יְהוָה֙ אֶת־דָּוִ֔יד בְּכֹ֖ל אֲשֶׁ֥ר הָלָֽךְ׃
And he put garrisons in Edom; and all the Edomites became servants to David. And the LORD gave victory to David whithersoever he went.
Read midrashic interpretation of I Chronicles 18:13: and classical rabbinic exegesis.