John Gills Exposition of the Bible Commentary - Psalms 19:7
The law of the Lord is perfect ,.... By which is meant, not the law of Moses, or the ten commandments, but the "doctrine" of the Lord; as the word תורה , "torah", signifies, even the whole word of God, as in Isaiah 8:20 . All the Scriptures of truth, which are profitable for doctrine; for setting doctrine in a clear light, and for the vindication and establishment of it, and are the rule of doctrine both to preachers and hearers; and which are "perfect", contain the whole mind and will... read more
Matthew Henry's Complete Commentary - Psalms 19:7-14
God's glory, (that is, his goodness to man) appears much in the works of creation, but much more in and by divine revelation. The holy scripture, as it is a rule both of our duty to God and of our expectation from him, is of much greater use and benefit to us than day or night, than the air we breathe in, or the light of the sun. The discoveries made of God by his works might have served if man had retained his integrity; but, to recover him out of his fallen state, another course must be... read more