"***** The exercise that teaches the hand to be useful and trains the young to bear their share of life's burdens, gives physical strength and develops every faculty. All should find something to do that will be beneficial to themselves and helpful to others. God appointed work as a blessing, and only the diligent worker finds the true glory and joy of life. 6T 180.1"
"In the sweat of thy face shalt thou eat bread, till thou return unto the ground; for out of it wast thou taken: for dust thou art, and unto dust shalt thou return."
Both passages connect work with blessing and fulfillment. While Genesis 3:19 presents work as a consequence of the fall, EGW reframes it as a positive aspect of life, but the underlying theme of work's importance remains.
"***** Brain and muscle must be taxed proportionately if health and vigor are to be maintained. The youth can then bring to the study of the word of God healthy perception and well-balanced nerves. They will have wholesome thoughts and can retain the precious things that are brought from the word. They will digest its truths and as a result will have brain power to discern what is truth. Then, as occasion demands, they can give to every man that asks a reason of the hope that is in them with meekness and fear. 6T 180.2"
"But sanctify the Lord God in your hearts: and be ready always to give an answer to every man that asketh you a reason of the hope that is in you with meekness and fear:"
EGW directly alludes to 1 Peter 3:15, using similar phrasing about giving a reason for one's hope with meekness and fear.