Thy word is a lamp unto my feet, and a light unto my path.
Psalms 119:105
King James Version (public domain)
Traditionally attributed to David · c. 10th century BC · King of Israel; author of many Psalms (compiled with other writers)
Context
103How sweet are thy words unto my taste! yea, sweeter than honey to my mouth!
104Through thy precepts I get understanding: therefore I hate every false way.
105Thy word is a lamp unto my feet, and a light unto my path.
106I have sworn, and I will perform it, that I will keep thy righteous judgments.
107I am afflicted very much: quicken me, O LORD, according unto thy word.