Thomas Brooks said this quote

If it is not strong upon your heart to practice what you read, to what end do you read? To increase your own condemnation? If your light and knowledge be not turned into practice, the more knowing a man you are, the more miserable a man you will be in the day of recompense; your light and knowledge will more torment you than all the devils in hell. Your knowledge will be that rod that will eternally lash you, and that scorpion that will forever bite you, and that worm that will everlastingly gnaw you; therefore read, and labor to know that you may do--or else you are undone forever.