בְּאָמְרִ֣י לָרָשָׁ֗ע רָשָׁע֙ מ֣וֹת תָּמ֔וּת וְלֹ֣א דִבַּ֔רְתָּ לְהַזְהִ֥יר רָשָׁ֖ע מִדַּרְכּ֑וֹ ה֤וּא רָשָׁע֙ בַּעֲוֺנ֣וֹ יָמ֔וּת וְדָמ֖וֹ מִיָּדְךָ֥ אֲבַקֵּֽשׁ׃
When I say unto the wicked: O wicked man, thou shalt surely die, and thou dost not speak to warn the wicked from his way; that wicked man shall die in his iniquity, but his blood will I require at thy hand.
Read halakhic rulings (Jewish law) on Ezekiel 33:8: and classical halakhic sources.