וְלֹא־תָח֥וֹס עֵינִ֖י וְלֹ֣א אֶחְמ֑וֹל כִּדְרָכַ֜יִךְ עָלַ֣יִךְ אֶתֵּ֗ן וְתוֹעֲבוֹתַ֙יִךְ֙ בְּתוֹכֵ֣ךְ תִּֽהְיֶ֔יןָ וִֽידַעְתֶּ֕ם כִּ֛י אֲנִ֥י יְהוָ֖ה מַכֶּֽה׃
And Mine eye shall not spare, neither will I have pity; I will bring upon thee according to thy ways, and thine abominations shall be in the midst of thee; and ye shall know that I the LORD do smite.
Read halakhic rulings (Jewish law) on Ezekiel 7:9: and classical halakhic sources.