The entrance of your words gives light; it gives understanding unto the simple.
Read Chapter 119
Augustine of Hippo
129. "When thy word goeth forth," he saith, "it giveth light, and maketh His little ones to understand" (ver. 130). What is the little one save the humble and weak? Be not proud therefore, presume not in thine own strength, which is nought; and thou wilt understand why a good law was given by a good God, though it cannot give life. For it was given for this end, that it might make thee a little one instead of great, that it might show that thou hadst not strength to do the law of thine own power: and that thus, wanting aid and destitute, thou mightiest fly unto grace, saying, "Have mercy upon me, O Lord, for I am weak." ...Let all be little ones, and let all the world be guilty before Thee: because "by the deeds of the Law there shall no flesh be justified" in Thy sight; "for by the Law is the knowledge of sin," etc. These are Thy wonderful testimonies, which the soul of this little one hath searched; and hath therefore found, because he became humbled and a little one. For who doth Th...
Declaration. By God's ministers renders them intelligible, though so wonderful in themselves. Hebrew styles this "the door of opening. "(Berthier)
The Scriptures are full of difficulties, and Daniel (ix. 2.) made them his study. Since the coming of Christ, the mysteries and prophecies have been more developed. But those who refuse to acknowledge him, grope at mid-day, Matthew xi. 25., and xviii. 5., and 1 Corinthians xiv. 20. (Calmet)
The first entrance into the knowledge of holy Scripture illuminates the understanding of the humble, whence they proceed to know more. (Worthington)