Proverbs 21:4 - Joseph Benson’s Commentary on the Old and New Testaments

A high look One sign of pride put for all the rest; and a proud heart Pride lurking and reigning in the heart, though it do not discover itself to men by outward actions, but be disguised with a show of humility, as it frequently is; and the ploughing of the wicked Even their civil or natural actions, which in themselves are lawful and good, are made sinful, as they are managed by ungodly men, without any regard to the glory of God, which ought to be the end of all our actions; is sin Is by them turned into sin, and made the occasion of much wickedness.