"Again, when we eat immoderately, we sin against our own bodies. Upon the Sabbath, in the house of God, gluttons will sit and sleep under the burning truths of God's word. They can neither keep their eyes open, nor comprehend the solemn discourses given. Do you think that such are glorifying God in their bodies and spirits, which are His? No; they dishonor Him. And the dyspeptic—what has made him dyspeptic is taking this course. Instead of observing regularity, he has let appetite control him, and has eaten between meals. Perhaps, if his habits are sedentary, he has not had the vitalizing air of heaven to help in the work of digestion; he may not have had sufficient exercise for his health. 2T 374.1"
"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? For ye are bought with a price: therefore glorify God in your body, and in your spirit, which are God’s."
EGW explicitly references the idea of glorifying God in one's body and spirit, directly quoting the concept from 1 Corinthians 6:19-20. She then applies this principle to the context of eating habits and their impact on spiritual and physical health.
"Be not among winebibbers; among riotous eaters of flesh: For the drunkard and the glutton shall come to poverty: and drowsiness shall clothe a man with rags."
Both passages address the dangers of gluttony. EGW describes the consequences of immoderate eating, such as drowsiness and inability to comprehend spiritual truths, which aligns with the warning in Proverbs about the glutton's path to poverty and drowsiness.
"Some of you feel as though you would like to have somebody tell you how much to eat. This is not the way it should be. We are to act from a moral and religious standpoint. We are to be temperate in all things, because an incorruptible crown, a heavenly treasure, is before us. And now I wish to say to my brethren and sisters, I would have moral courage to take my position and to govern myself. I would not want to put that on someone else. You eat too much, and then you are sorry, and so you keep thinking upon what you eat and drink. Just eat that which is for the best, and go right away, feeling clear in the sight of Heaven, and not having remorse of conscience. We do not believe in removing temptations entirely away from either children or grown persons. We all have a warfare before us and must stand in a position to resist the temptations of Satan, and we want to know that we possess the power in ourselves to do this. 2T 374.2"
"And every man that striveth for the mastery is temperate in all things. Now they do it to obtain a corruptible crown; but we an incorruptible."
The EGW passage directly echoes the sentiment of temperance in all things for a heavenly reward, as stated in 1 Corinthians 9:25. The connection is clear and meaningful.