"The opening of Thy Word giveth light" means not only that God's Word gives light, but that this light divinely grows with the growing revelation or understanding of the Word. As the Word opens before the soul the Divine shines forth from it more clearly, and the glory of the present God becomes more wonderful.

The entrance of your words gives light; it gives understanding to the simple. entrance. Psalm 119:105 NUN. Thy word is a lamp unto my feet, and a light unto my path. Proverbs 6:23 For the commandment is a lamp; and the law is light; and reproofs of instruction are the way of life: Isaiah 8:20

The entrance of thy words giveth light — פתח pethach, the opening of it: when I open my Bible to read, light springs up in my mind. Every sermon, every prayer, every act of faith, is an opening by which light is let into the seeking soul.

The entrance of thy words giveth light; it giveth understanding unto the simple (Psalm 119:130). The verse above doesn’t say that the Word gives light, but that ‘the entrance of the Word gives light.’ It’s your responsibility to allow God’s Word entrance into your heart—your spirit.

Verse 130 states the entrance of thy word giveth light. As soon as the word of God enters into our hearts and takes root, it enlightens us and provides understanding. It causes us to pause and look at things from a totally different perspective.