וְאֵת֩ כָּל־אַנְשֵׁ֨י הַחַ֜יִל שִׁבְעַ֣ת אֲלָפִ֗ים וְהֶחָרָ֤שׁ וְהַמַּסְגֵּר֙ אֶ֔לֶף הַכֹּ֕ל גִּבּוֹרִ֖ים עֹשֵׂ֣י מִלְחָמָ֑ה וַיְבִיאֵ֧ם מֶֽלֶךְ־בָּבֶ֛ל גּוֹלָ֖ה בָּבֶֽלָה׃
And all the men of might, even seven thousand, and the craftsmen and the smiths a thousand, all of them strong and apt for war, even them the king of Babylon brought captive to Babylon.
Read kabbalistic (mystical) interpretation of II Kings 24:16: and classical mystical sources.