Deuteronomy 29:23 Halakhah

וְאָֽמְרוּ֙ כָּל־הַגּוֹיִ֔ם עַל־מֶ֨ה עָשָׂ֧ה יְהוָ֛ה כָּ֖כָה לָאָ֣רֶץ הַזֹּ֑את מֶ֥ה חֳרִ֛י הָאַ֥ף הַגָּד֖וֹל הַזֶּֽה׃

even all the nations shall say ‘Wherefore hath the LORD done thus unto this land? what meaneth the heat of this great anger?’

Read halakhic rulings (Jewish law) on Deuteronomy 29:23: and classical halakhic sources.