אַשְׁרֵ֣י אָ֭דָם מְפַחֵ֣ד תָּמִ֑יד וּמַקְשֶׁ֥ה לִ֝בּ֗וֹ יִפּ֥וֹל בְּרָעָֽה׃
Happy is the man that feareth alway; But he that hardeneth his heart shall fall into evil.
Read halakhic rulings (Jewish law) on Proverbs 28:14: and classical halakhic sources.