Because this psalm was very large, and the matter of it of the greatest importance, the psalmist thought fit to divide it into two and twenty several parts, according to the number of the Hebrew letters, that he might both prevent tediousness, and fix it in the memory. Each part consists of eight verses. All the verses of the first part beginning with Aleph, all the verses of the second with Beth, and so on. It is observable, that the word of God is here called by the names of law, statutes, precepts or commandments, judgments, ordinances, righteousness, testimonies, way and word. By which variety, he designed to express the nature and perfection of God's word. It is called his word, as revealed by him to us; his way, as prescribed by him for us to walk in; his law, as binding us to obedience; his statutes, as declaring his authority of giving us laws; his precepts as directing our duty; his ordinances, as ordained by him; his righteousness, as exactly agreeable to God's righteous nature and will; his judgments, as proceeding from the great judge of the world, and being his judicial sentence to which all men must submit; and his testimonies, as it contains the witness of God's will, and of man's duty. And there is but one of these one hundred and seventy six verses, in which one or other of these titles is not found. The general scope and design of this psalm is, to magnify the law and make it honourable: to shew the excellency and usefulness of divine Revelation, and recommend it to us, by the psalmist's own example, who speaks by experience of the benefits of it, for which he praises God, and earnestly prays for the continuance of God's grace, to direct and quicken him in his way.