"the soul a never-failing fountain of happiness. Would that all who have not chosen Christ might realize that he has something vastly better to offer them than they are seeking for themselves. Man is doing the greatest injury and injustice to his own soul when he thinks and acts contrary to the will of God. No real joy can be found in the path forbidden by him who knows what is best, and who plans for the good of his creatures. The path of transgression leads to misery and destruction; but wisdom's “ways are ways of pleasantness, and all her paths are peace.” [ Proverbs 3:17 .] CE 68.1"
"Her ways are ways of pleasantness, and all her paths are peace."
Ellen White directly references Proverbs 3:17 in this passage.
"The physical as well as the religious training practiced in the schools of the Hebrews may be profitably studied. The worth of such training is not appreciated. There is an intimate relation between the mind and the body, and in order to reach a high standard of moral and intellectual attainment, the laws that control our physical being must be heeded. To secure a strong, well-balanced character, both the mental and the physical powers must be exercised and developed. What study can be more important for the young than that which treats of this wonderful organism that God has committed to us, and of the laws by which it may be preserved in health? CE 68.2"
"What? know ye not that your body is the temple of the Holy Ghost which is in you, which ye have of God, and ye are not your own? For ye are bought with a price: therefore glorify God in your body, and in your spirit, which are God’s."
Both passages emphasize the importance of caring for the body as a temple of God and the connection between physical and spiritual well-being. EGW expands on the importance of physical training.