Day by day Jesus gained knowledge from the great library of animate and inanimate nature. He who had created all things, at whose word of power hill and vale, river and tree, had come into being, was now a child of humanity, and He studied the lessons which His own hand had written in leaf and flower and tree. The parables, by which, during His ministry, Jesus loved to teach His lessons of truth, show how open His spirit was to the sweet influence of nature, and how, during those hidden years, He delighted to gather the spiritual teachings from all the surroundings of daily life. To Jesus the significance of the word and the works of God unfolded gradually, as He was thinking, seeking to understand the reason of things, as any youth may seek to understand. CSW 39.1
Every child may gain knowledge, as Jesus did, from the works of nature and the pages of God's holy word. As we try to become acquainted with our heavenly Father through His holy word, angels will come near, our minds will be strengthened, our character will be elevated and refined, and we shall become more like our Saviour. And as we behold the beauty and grandeur of the works of nature, our affections go out after God; while the heart is awed and the spirit subdued, the soul is invigorated by coming in contact with the Infinite through His marvelous works. Communion with God through humble prayer, develops and strengthens the mental and moral faculties, and spiritual powers increase by cultivating thoughts upon spiritual things. CSW 40.1
Those who consecrate soul, body, and spirit to God, purifying their thoughts by obedience to the law of God, will continually receive a new endowment of physical and mental power. There will be heart yearnings after God, and earnest prayer for clear perception to discern the office and work of the Holy Spirit. It is not for us to use it, but for the Holy Spirit to use us, molding, fashioning every power. CSW 40.2
The servants of Christ are to prepare no set speech to present when brought to trial for their faith. Their preparation is to be made day by day, in treasuring up in their hearts the precious truths of God's word, in feeding upon the teaching of Christ, and through prayer strengthening their faith; then, when brought into trial, the Holy Spirit will bring to their remembrance the very truths that will reach the hearts of those who shall come to hear. CSW 40.3
God will flash the knowledge obtained by diligent searching of the Scriptures, into their memory at the very time when it is needed. But if they neglect to fill their minds with the gems of truth, if they do not acquaint themselves with the words of Christ, if they have never tasted the power of His grace in trial, then they cannot expect that the Holy Spirit will bring His words to their remembrance. They are to serve God daily with their undivided affections, and then trust Him.—Testimonies on Sabbath-School Work, 105-107. CSW 41.1