1. Each one of these verses contain a prophecy about Jesus Christ. They told about His life, charachter, accomplishments, even where he would be born and grow up. The pattern of one man fulfilling every one of these prophecies is impossible unless he was really truly the Promised One.
2. Compare:Psalm 119:105 to these verses: Job 29:3; Psalm 19:8, 18:28, & 43:3; Proverbs 6:23; Matthew 6:19-24; John 1:1-4; 2 Timothy 3:16; 2 Peter 1:19; and Revelation 1:9-20. Following the subject links from Psalm 119:105 to the other verses will help also. We can conclude that the scriptures (the Word of God) are the light in God Himself, even the light and the fire in the eyes of Jesus Christ; and that when we set our eyes on His Word, His light transfers to us.
3. Here is another challenge: Find each of these prophecies fulfilled in the new testament gospels -- Matthew, Mark, Luke and John.