"The tables of Christian parents should not be loaded down with food containing condiments and spices. CT 125.3 There are but few among the young who have any definite knowledge of the mysteries of life. The study of the wonderful human organism, the relation and dependence of all its complicated parts, is one in which most mothers take little if any interest. They do not understand the influence of the body upon the mind or of the mind upon the body. They occupy themselves with needless trifles and then plead that they have no time to obtain the information which they need in order to care properly for the health of their children. It is less trouble to trust them to the doctors. Thousands of children die through the ignorance of their parents regarding the laws of hygiene. CT 126.1"
"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?"
Both passages connect the body to a higher purpose. EGW emphasizes the importance of caring for the body through proper diet and hygiene, while Paul describes the body as a temple of the Holy Spirit. Both imply a responsibility to treat the body with respect.
"If parents themselves would obtain knowledge upon this subject and feel the importance of putting it to a practical use, we should see a better condition of things. Teach your children to reason from cause to effect. Show them that if they violate the laws of their being they must pay the penalty in suffering. If you cannot see as rapid improvement as you desire, do not be discouraged, but instruct them patiently and press on until victory is gained. Recklessness in regard to bodily health tends to recklessness in morals. CT 126.2"
"Be not deceived; God is not mocked: for whatsoever a man soweth, that shall he also reap."
The EGW passage directly applies the principle of sowing and reaping (cause and effect) to the context of health and morality, echoing the sentiment of Galatians 6:7.