פֶּן־יַסִּ֨ית אֶתְכֶ֤ם חִזְקִיָּ֙הוּ֙ לֵאמֹ֔ר יְהוָ֖ה יַצִּילֵ֑נוּ הַהִצִּ֜ילוּ אֱלֹהֵ֤י הַגּוֹיִם֙ אִ֣ישׁ אֶת־אַרְצ֔וֹ מִיַּ֖ד מֶ֥לֶךְ אַשּֽׁוּר׃
Beware lest Hezekiah persuade you, saying: The LORD will deliver us. Hath any of the gods of the nations delivered his land out of the hand of the king of Assyria?
Read halakhic rulings (Jewish law) on Isaiah 36:18 from the Mishneh Torah and classical halakhic sources, free online.