Proverbs 28:5 - Matthew Poole's English Annotations on the Holy Bible

Understand not, because their minds are naturally blind, and are further blinded by their own prejudices and passions, and by the god of this world, who rules in and over them. Judgment, i.e. what is just and right; what is their duty in all cases and conditions, as judgment is frequently understood. That seek the Lord, by diligent study of his word, and by fervent prayers to him for advice. All things which are necessary to be known by them, either for the discharge of all their present duties to God and men, or for their everlasting happiness.