Psalm 119:105 Your word is a lamp to my feet and a light to my path.

Proverbs 6:23 For the commandment is a lamp, and the whole teaching [of the law] is light, and reproofs of discipline are the way of life,

Psalm 19:8 The precepts of the Lord are right, rejoicing the heart; the commandment of the Lord is pure and bright, enlightening the eyes.