You must live under the influence of the Almighty God, the Holy Spirit, and the Holy Son.
Do not use your body like a dump truck but cherish and use it like a [high class] sedan.
The physical body needs to be taken care of to be healthy while doing appropriate exercise and eating appropriate food.
Take care of the heart and mind also and make them healthy.
The Word is the food for the spirit.
It is like food. Just as you have to eat food as long as the body exists, you have to keep listening to the Word as long as the spirit exists.