אַחֲרֵ֣י כָל־זֹ֗את אֲשֶׁ֨ר הֵכִ֤ין יֹֽאשִׁיָּ֙הוּ֙ אֶת־הַבַּ֔יִת עָלָ֞ה נְכ֧וֹ מֶֽלֶךְ־מִצְרַ֛יִם לְהִלָּחֵ֥ם בְּכַרְכְּמִ֖ישׁ עַל־פְּרָ֑ת וַיֵּצֵ֥א לִקְרָאת֖וֹ יֹאשִׁיָּֽהוּ׃
After all this, when Josiah had prepared the temple, Neco king of Egypt went up to fight against Carchemish by the Euphrates; and Josiah went out against him.
Read halakhic rulings (Jewish law) on II Chronicles 35:20: and classical halakhic sources.