וַיַּ֣עַשׂ ׀ בִּירוּשָׁלִַ֨ם חִשְּׁבֹנ֜וֹת מַחֲשֶׁ֣בֶת חוֹשֵׁ֗ב לִהְי֤וֹת עַל־הַמִּגְדָּלִים֙ וְעַל־הַפִּנּ֔וֹת לִירוֹא֙ בַּֽחִצִּ֔ים וּבָאֲבָנִ֖ים גְּדֹל֑וֹת וַיֵּצֵ֤א שְׁמוֹ֙ עַד־לְמֵ֣רָח֔וֹק כִּֽי־הִפְלִ֥יא לְהֵעָזֵ֖ר עַ֥ד כִּֽי־חָזָֽק׃
And he made in Jerusalem engines, invented by skilful men, to be on the towers and upon the corners, wherewith to shoot arrows and great stones. And his name spread far abroad; for he was marvellously helped, till he was strong.
Read midrashic interpretation of II Chronicles 26:15: and classical rabbinic exegesis.