"The life of Christ that gives life to the world is in His word. It was by His word that Jesus healed disease and cast out demons; by His word He stilled the sea, and raised the dead; and the people bore witness that His word was with power. He spoke the word of God, as He had spoken through all the prophets and teachers of the Old Testament. The whole Bible is a manifestation of Christ, and the Saviour desired to fix the faith of His followers on the word. When His visible presence should be withdrawn, the word must be their source of power. Like their Master, they were to live 'by every word that proceedeth out of the mouth of God.' Matthew 4:4.
"As our physical life is sustained by food, so our spiritual life is sustained by the word of God. And every soul is to receive life from God’s word for himself. As we must eat for ourselves in order to receive nourishment, so we must receive the word for ourselves. We are not to obtain it merely through the medium of another’s mind. We should carefully study the Bible, asking God for the aid of the Holy Spirit, that we may understand His word. We should take one verse, and concentrate the mind on the task of ascertaining the thought which God has put in that verse for us. We should dwell upon the thought until it becomes our own, and we know 'what saith the Lord.'
"In His promises and warnings, Jesus means me. God so loved the world, that He gave His only-begotten Son, that I by believing in Him, might not perish, but have everlasting life. The experiences related in God’s word are to be my experiences. Prayer and promise, precept and warning, are mine. 'I am crucified with Christ: nevertheless I live; yet not I, but Christ liveth in me: and the life which I now live in the flesh I live by the faith of the Son of God, who loved me, and gave Himself for me.' Galatians 2:20. As faith thus receives and assimilates the principles of truth, they become a part of the being and the motive power of the life. The word of God, received into the soul, molds the thoughts, and enters into the development of character.
"By looking constantly to Jesus with the eye of faith, we shall be strengthened. God will make the most precious revelations to His hungering, thirsting people. They will find that Christ is a personal Saviour. As they feed upon His word, they find that it is spirit and life. The word destroys the natural, earthly nature, and imparts a new life in Christ Jesus. The Holy Spirit comes to the soul as a Comforter. By the transforming agency of His grace, the image of God is reproduced in the disciple; he becomes a new creature. Love takes the place of hatred, and the heart receives the divine similitude. This is what it means to live 'by every word that proceedeth out of the mouth of God.' This is eating the Bread that comes down from heaven."
Taken from Desire of Ages, p. 390-391