Psalm 119.18 Open my eyes, that I may behold wondrous things out of your law.
This prayer is perhaps the secret of David’s appreciation of the word of God. He prays that God must open the eyes of his heart to a spiritual understanding and insight. God's law is full of wonderful things, but it is not always easy for the human eye to grasp it. Therefore, we need to pray the prayer for revelation that David prays in this verse.