Psalms 19:9 - Joseph Benson’s Commentary on the Old and New Testaments

The fear of the Lord True religion and godliness, prescribed in the word, reigning in the heart and practised in the life; or rather, that word or law itself is intended, and called the fear of the Lord, because it is both the rule and cause of that fear, or of true religion; is clean Sincere, not adulterated with any mixture of vanity, falsehood, or vice; not countenancing or allowing any sin or impurity of any kind, and preservative of the purity and holiness of the soul; enduring for ever Constant and unchangeable, the same for substance in all ages. Which is most true, both of the moral law and of the doctrine of God's grace and mercy to sinful and miserable man, which two are the principal parts of that law of which he here speaks. For as to the difference between the Old Testament and the New, that lies only in circumstantial and ritual things, which are not here intended. And that alteration also was foretold in the Old Testament, and consequently the accomplishment of it did not destroy, but confirm, the certainty and constancy of God's word. This also is opposed to human laws, in which there are, and ought to be, manifold changes, according to the difference of times, and people, and circumstances. The judgments of the Lord His laws, frequently called his judgments, because they are the declarations of his righteous will; and, as it were, his judicial sentence, by which he expects that men should govern themselves, and by which he will judge them at the last day; are true Grounded on the most sacred and unquestionable truths; and righteous altogether Without the smallest exception; not like those of men, often wrong and unrighteous, but perfectly and constantly equitable, just, and holy.