Proverbs 21:4 Halakhah

רוּם־עֵ֭ינַיִם וּרְחַב־לֵ֑ב נִ֖ר רְשָׁעִ֣ים חַטָּֽאת׃

A haughty look, and a proud heart— The tillage of the wicked is sin.

Read halakhic rulings (Jewish law) on Proverbs 21:4: and classical halakhic sources.