God requires all men to render their bodies to Him a living sacrifice, not a dead or a dying sacrifice, a sacrifice which their own course of action is debilitating, filling with impurities and disease. God calls for a living sacrifice. The body, He tells us, is the temple of the Holy Ghost, the habitation of His Spirit, and He requires all who bear His image to take care of their bodies for the purpose of His service and His glory. “Ye are not your own,” says the inspired apostle, “ye are bought with a price;” wherefore “glorify God in your body, and in your spirit, which are God's.” In order to do this, add to virtue knowledge, and to knowledge temperance, and to temperance patience. It is a duty to know how to preserve the body in the very best condition of health, and it is a sacred duty to live up to the light which God has graciously given. If we close our eyes to the light for fear we shall see our wrongs, which we are unwilling to forsake, our sins are not lessened but increase…
"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."
EGW directly quotes and expands upon 1 Corinthians 6:19-20, making the connection undeniable.
"I beseech you therefore, brethren, by the mercies of God, that ye present your bodies a living sacrifice, holy, acceptable unto God, which is your reasonable service."
EGW explicitly alludes to Romans 12:1, using the phrase 'living sacrifice' and connecting it to the care of the body. She also quotes 1 Corinthians 6:19-20.